Consumer Electronics

Hardware Specifications: 1. Chipset: ESPRESSIF-WROVER-B 240MHz Xtensa single-/dual-core 32-bit LX6 microprocessor 2. FLASH: QSPI flash 4MB / PSRAM 8MB 3. SRAM: 520KB SRAM 4. Button: reset 5. Power indicator lamp: red 6. USB to TTL: CH9102F QFN24 7. Modular interface: UART, SPI, SDIO, I2C, LED PWM, TV PWM, I2S, IRGPIO, capacitor touch sensor, ADC, DACLNA pre-amplifier 8. On-board clock: 40MHz crystal oscillator 9. Working voltage: 2.7V-3.6V 10. Working current: about 30mA 11. Working temperature range: -40~ +85 Degrees Celsius 12. Size&weight: 40.27x31.07x8.13mm, 6.42g Power Supply Specifications: 1. Power Supply: USB 5V/1A 2. Charging current: 500mA 3. Battery: 3.7V lithium battery WiFi Description: 1. Standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC 2. Protocol: 802.11 b/g/n(802.11n, speed up to150Mbps)A-MPDU and A-MSDU polymerization, support 0.4??S Protection interval 3. Frequency range: 2.4GHz~2.5GHz(2400M~2483.5M) 4. Transmit Power: 22dBm 5. Communication distance: 300m Bluetooth Description: 1. Protocol: meet bluetooth v4.2BR/EDR and BLE standard 2. Radio frequency: with -97dBm sensitivity NZIF receiver Class-1, Class-2&Class-3 emitter AFH 3. Audio frequency: CVSD&SBC audio frequency Software specification Description: 1. WiFi Mode: Station/SoftAP/SoftAP+Station/P2P 2. Security mechanism: WPA/WPA2/WPA2-Enterprise/WPS 3. Encryption Type : AES/RSA/ECC/SHA 4. Firmware upgrade: UART download/OTA???Through network/host to download and write firmware??? 5. Software Development: Support cloud server development /SDK for user firmware development 6. Networking protocol: IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User Configuration: AT + Instruction set, cloud server, Android/iOS APP 8. OS: FreeRTOS

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Hardware specifications 1. Chipset: ESP32-WROVER-B, AXP192 power management chip 2. Flash: 4MB /16MB 3. Static SRAM: 8MB 4. SRAM: 520 kB SRAM 5. Button: PWR power switch, reset 6. USB to TTL: CP2104 7. Vehicle clock: 40MHz crystal oscillator 8. Peripheral equipment: SIM Nano card slot, Mini PCIE card slot 9. Antenna: Onboard antenna (default) 10. Working voltage: 2.7V to 3.6V 11. Sleep current: About 700ma 12. Operating temperature range: -40 degrees Celsius ~ + 85 degrees Celsius 13. Dimensions: 75 x 33 x 10.5 mm 14. Weight: 14.5g Power Specifications 1. Power input: USB 5V / 1A 2. Charging current: 500 mA 3. Battery input: 3.7-4.2V 4. Charging IC: AXP192 5. JST connector: 2-pin 2.0mm 6. USB: Type C wireless online 1. Standard: FCC / CE-RED / IC / TELEC / KCC / SRRC / NCC (ESP32 chip) 2. Protocol: 802.11 b/g/n (802.11n, speed up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4uS guard interval 3. Frequency range: 2.4GHz-2.5GHz (2400M-2483.5M) 4. Transmit power: 22dBm 5. Communication distance: 300m Bluetooth 1. Protocol: Compliant with Bluetooth v4.2BR/EDR and BLE standards 2. Radio frequency: NZIF receiver Class-1 with sensitivity of -97dBm, Class-2&Class-3 transmitter AFH 3. Audio: CVSD&SBC audio Software specifications 1. Wi-Fi mode: Workstation / SoftAP / SoftAP + Station / P2P 2. Security mechanism: WPA / WPA2 / WPA2-Enterprise / WPS 3. Encryption method: AES / RSA / ECC / SHA 4. Firmware upgrade: UART download/OTA (download and write firmware via network/host) 5. Software development: support cloud server development / SDK for user firmware development 6. Network protocol: IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT 7. User configuration: AT + command set, cloud server, Android / iOS app 8. Operating system: FreeRTOS SIM7600E suitable for EMEA/Kor/Thailand: 1. LTE-TDD: B38/B40/B41 2. LTE-FDD: B1/B3/B5/B7/B8/B20 3. UMTS/HSPA+: B1/B5/B8 4. GSM/GPRS/EDGE:B3/B8 Packing list 1. SIM7600E-PCIE module x 1 2. LTE antenna x 1 3. GPS antenna x 1 4. Screw x 2

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Hardware Specifications 1. Chipset: ESPRESSIF-ESP32-WROOM, LAN8720A Ethernet chip, SI 3404 power management chip 2. Flash: 4MB 3. PSRAM: 8MB 4. SRAM: 520 kB SRAM 5. Button: robot, rest 6. External device: TF card slot, C-type interface, PA2369NL 1825-S transformer, HR861153C Ethernet-POE interface 7. USB to TTL: CP 2104 8. Modular interface: SD card, UART, SPI, I2C, PWM, I2S, ADC 9. Satellite clock: 32.768 MHz crystal oscillator 10. Operating temperature range: -40 degrees Celsius to +85 degrees Celsius 11. Size: 70x52.3x17mm 12. Weight: 26.85g Power Specifications 1. Power input: -C type USB 5V 2. HR861153C Ethernet-POE interface: 50V 3. Working voltage: 2.7V-3.6V 4. Output current: about 1.2A 5. Charging current: 500 mA 6. USB: Type C USB Wi-Fi 1. Standard: FCC/CE-Red/IC/TELEC/KCC/SRRC/NCC (ESP 32 chip) 2. Protocol: 802.11 b/g/n (802.11n, acceleration 150 Mbps) A-MPDU and A-MSDU aggregation, support 0.4??S guard interval 3. Frequency range: 2.4GHz~2.5GHz (2400 m~2483.5M) 4. Transmit power: 22 dBm 5. Communication distance: 300 meters Bluetooth 1. Protocol: Complies with Bluetooth V4.2BR/EDR and BLE standards 2. Radio frequency: -97 dBm sensitivity nzif receiver class-1 class-2 class-3 emitter AFH 3. Audio: CVSD&SBC audio Software Specification 1. Wi-Fi mode: workstation/SoftAP/SoftAP+Station/P2P 2. Security mechanism: WPA/WPA 2/WPA 2-Enterprise/WPS 3. Encryption type: AES/RSA/ECC/SHA 4. Firmware upgrade: UART download/OTA (download and write firmware via network/host) 5. Software development: support cloud server development/sdk for user firmware development 6. Network protocol: IPv 4, IPv 6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User configuration: +instruction set, cloud server, Android/iOSapp 8. OS: FreeRTOS

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Description1. Onboard TJA1050 CAN controller interface chip2. Chip commonly used pin has led, convenient connection to use3. Pin 5v to power supply4. PCB board size: 22 (mm) x11.5 (mm)Specification1. Brand: Landa tianrui2. Model: LDTR-WG02103. Quantity: 1 piece4. Color: Blue5. Material: PCB6. Chipset: TJA10507. Dimensions: 2.2 cm x 1.2 cm x 0.5 cm8. Weigh: 5g9. Package List: 2 x TJA1050 CAN Controller Interface Module

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Features1. Input voltage range: DC 10V-60V2. Rated current: continuous operating current within 6A3. Function: control DC brush motor speed, forward, stop, reverse4. Installation method: panel type, and wiring according to wiring diagram5. Brand: Landa tianrui6. Model: LDTR-WG02657. Material: FR-48. Dimensions: 9.8 cm * 9.1cm* 6cm9. Weight: 124 g10. Package Included: 1 x Motor Speed ControllerNote1. The input of the DC motor governor is DC, and it cannot be directly connected to AC (for example, household 220V AC), otherwise it will burn out.2. The positive and negative poles of the DC power cannot be reversed, otherwise the governor will be bad.3. The motor is not divided into positive and negative. When the running direction is inconsistent with the expectation, the direction can be changed by adjusting the line sequence.4. The potentiometer knob can change the governor output duty cycle, thus changing the motor speed.

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Features1. High efficiency, high torque, low heat generating2. Control the speed of a DC motor with this controller3. With reverse polarity protection, high current protection4. With potentiometer5. With reversible switch6. Speed controller is made with high quality circuit board which ensures a longer service life7. This simple and easy-to-use DC motor speed controller has an stable performance8. The output current of this motor speed controller can be adjusted from 6A to 10A, and it is simple to set9. This motor speed controller uses screw terminals for convenient and quick wiringSpecifications1. Input Voltage: DC 6V-30V2. Output Voltage: Linear with load3. Output Current: 6A-10A4. Power: Max. 200W5. Speed Range: 0% to 100%6. Regulation Method: Potentiometer7. Regulation Type: Regulating Current8. Control Frequency: 16KHz9. Wiring Type: Screw terminal10. Rotary Knob Wire Length: 20cm 11. Brand: Landa tianrui12. Model: LDTR-WG026613. Material: FR-414. Dimensions: 7.4 cm * 4.7 cm* 2.8cm15. Weight: 68 g16. Package included: 1 x PWM DC motor speed controller

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Technical Parameters1. Model: LDTR-WG02672. Potentiometer: Resistance B100K; opening 8mm3. Input voltage: DC10-60V4. Output voltage: 0-100% of input voltage5. Control power: 12V*10A=120W, 24V*10A=240W,...6. Rated current: 10A7. Maximum current: 20A8. Speed range: 5%-100%9. Size: 88mm*59mm*35mm10. PWM frequency: 25kHz11. Package included: 1 x DC 12V 24V 36V 48V PWM DC Motor Speed ControllerPrecautions and instructions for use1. DC motor speed controller input is DC, not directly connected to AC, otherwise it will burn out2. The positive and negative DC power supply can not be reversed, otherwise the governor will be damaged.3. The motor can be divided into positive and negative. When the direction of movement is inconsistent with the expectation,4. the direction can be changed by adjusting the line sequence.5. The potentiometer knob can change the duty cycle of the speed control output, thus changing the motor speed.

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Features1. The potentiometer adjusts the volume with a switch for easy control of the volume, making it good for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna. 2. The copper DC connector is used to withstand high current and no heat. 3. Capacitor 470uf35V solid capacitors ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality. 4. Free DC head lead, compatible with the input power interface of this product, even if you do not have a DC head adapter or battery, it can be easily wired. 5. Bluetooth 5.0 version, the transmission efficiency is higher, the transmission distance is farther. Precautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Adaptation supply voltage: 5-24V(optional 9/12/15/18/24V adapter, high power recommended high voltage) 4. Adapter speaker: 30-200W, 4 ohms, 8 ohms 5. Number of channels: Left and right stereo(stereo) 6. Bluetooth transmission distance: 15m(without occlusion) 7. Protection mechanism: Self-recovery overheat protection, self-recovery short circuit protection 8. Size: 55 x 38 x 17mm Tip: To have enough out put power if the input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the larger the ohms of the horn, the smaller the relative sound powre. Please pay attention! Power supply voltage: 12V--8 ohm speaker/12W(left channel) + 12W(right channel), 4 ohm speaker/20W + 20W 15V--8 ohms/18 + 18W, 4 ohms/greater than 30 + 30W 19V--8 ohms/32 + 32W, 4 ohms/greater than 45 + 45W 24V--8 ohms/38 + 38W, 4 ohms/greater than 50 + 50W

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Features1. The potentiometer adjusts the volume with a switch for easy control of the volume, making it good for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna. 2. The copper DC connector is used to withstand high current and no heat. 3. Capacitor 470uf35V solid capacitors ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality. 4. Free DC head lead, compatible with the input power interface of this product, even if you do not have a DC head adapter or battery, it can be easily wired. 5. Bluetooth 5.0 version, the transmission efficiency is higher, the transmission distance is farther. Precautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Adaptation supply voltage: 5-24V(optional 9/12/15/18/24V adapter, high power recommended high voltage) 4. Adapter speaker: 30-200W, 4 ohms - 8 ohms 5. Number of channels: Left and right stereo(stereo) 6. Bluetooth transmission distance: 15m(without occlusion) 7. Protection mechanism: Self-recovery overheat protection, self-recovery short circuit protection 8. Size: 55 x 38 x 17mm Tip: To have enough out put power if the input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the larger the ohms of the horn, the smaller the relative sound powre. Please pay attention! Power supply voltage: 12V--8 ohm speaker/12W(left channel) + 12W(right channel), 4 ohm speaker/20W + 20W 15V--8 ohms/18 + 18W, 4 ohms/greater than 30 + 30W 19V--8 ohms/32 + 32W, 4 ohms/greater than 45 + 45W 24V--8 ohms/38 + 38W, 4 ohms/greater than 50 + 50W

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steel

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1. This is a plant watering alarm - as simple as that. You put it into the soil near a plant and it emits a tiny chirp when the soil is dry, reminding you to water the plant. It uses capacitive humidity sensing as opposed to resistive humidity sensing, this means, it does not make an electric contact with the soil, avoiding electrode corrosion and soil electrolysis and resulting in better accuracy and longer battery life.2. Special care has been taken not to make it yet another source of annoyance - This sensor will be silent when it’s dark and will restrict itself from making too much noise.3. The alarm level can be set for each plant individually. As water is consumed by the plant, it will detect the low moisture level and will start to emit rare short chirps. As more water evaporates, it will increase the alarm rate. This sensor can detect if it’s day or night by measuring the amount of ambient light and will not make noise when it’s dark.4. Package included: 1 x Plant Watering Alarm Sensor

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1. Size: 38mm (length) X22mm (width) X14mm (height)2. Weight: 8g3. Working voltage: 3.3--5.5V4. Clock chip: High-precision clock chip DS32315. Clock accuracy: Within 0-40 degree C, accuracy 2ppm, annual error about 1 minute6. With 2 calendar alarm clocks7. Programmable square wave output8. Real-time clock generates seconds, minutes, hours, week, date, month and year time, and provides leap year compensation valid to 2100 years9. The temperature sensor inside the chip has an accuracy of +/- 3 degree C10. Memory chip: AT24C32 (storage capacity 32K)11. IIC bus interface, high transmission speed 400KHz (when working voltage is 5V)12. Can cascade other IIC devices, 24C32 address can be modified by short circuit A0 / A1 / A2, the default address is 0x5713. With rechargeable battery LIR2032 to ensure that the clock still runs normally after the system is powered off14. Packing: Single anti-static packaging15. Wiring instructions (taking Arduino uno r3 as an example):SCL -- A5SDA -- A4VCC -- 5VGND -- GND16. DS3231 is a low-cost, high-precision I2C real-time clock (RTC) with integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device contains a battery input, which can maintain accurate timing when the main power is disconnected. The integrated crystal oscillator improves the long-term accuracy of the device and reduces the number of components in the production line. The DS3231 offers commercial and industrial temperature ranges and is available in a 16-pin 300mil SO package.17. RTC saves seconds, minutes, hours, day, date, month and year information. Months less than 31 days will automatically adjust the end of the month, including corrections for leap years. The working format of the clock can be 24 hours or a 12-hour format with / AM / PM indication. Provide two configurable calendar alarms and a configurable square wave output. The address and data are transferred serially via the I2C bidirectional bus.Sophisticated, temperature-compensated voltage reference and comparator circuits are used to monitor VCC status, detect power failures, provide reset outputs, and automatically switch to backup power when necessary. In addition, the / RST monitor pin can be used as a manual input to generate a μP reset.18. In addition to high timing accuracy, the DS3231 also has some other functions that expand the additional functions and selection range of the system host. The device integrates a very accurate digital temperature sensor, which can be accessed through the I2C * interface (just like time). The accuracy of this temperature sensor is +/- 3 degree C. The on-chip control circuit can realize automatic power supply detection and manage the power supply switching between the main power supply and the backup power supply (that is, the low-voltage battery). If the main power supply is powered down, the device can continue to provide accurate timing and temperature without affecting performance. When the main power supply is re-energized or the voltage value returns to the allowable range, the on-chip reset function can be used to restart the system microprocessor.

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Main Features: 1. Brand new Ultrasonic Sensor HC-SR04 Distance Measuring Module 2. Features 4-mode connections: VCC / trig (T) / echo(R) / GND 3. With electric frequency output signal from 0V to 5V 4. Has high precision up to 3mm 5. 5VDC power supply 6. Detecting distance is from 2cm to 450cm Module Working Principle: 1. Adopt IO trigger through supplying at least 10us sequence of high level signal 2. The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal 3. If there is signal returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving

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Main Features: 1. Working current: DC 3.3V / 13 - 26mA 2. Idle current: DC 3.3V / 10 - 13mA 3. Sleep current: < 80uA 4. Peak current: < 30mA 5. Working frequency: 13.56MHz 6. Supports card: Mifare1 S50, mifare1 S70, mifare Ultralight, mifare Pro, mifare Desfare 7. Application: Various electronic products and DIY projects

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1. In resistance tester circuit, it is necessary to adjust the potentiometer to balance the resistance tester. Under the influence of temperature, humidity and vibration impact, the position and specifications of the potentiometer will be changed when being used, the system index is also changed. Therefore, to make the system back to the original state it needs to be adjusted, and digital potentiometer module can just solve this problem.2. The digital potentiometer changes in steps or incrementally, and the resistance is of linear change. For example, the resistance range of X9C104 is 40R~1000k, divided into 100 steps, so each increment is 1010R.3. With temperature compensation function: the resistance deviation between endpoints is +/-20%;4. Sliding end data can be kept for a long time, about 100 years;5. With 1% high resistance resolution;6. Working voltage: 5V;7. Total resistance: 100kΩ;8. End voltage: -5~5V;9. Tap number: 100;10. Interface: CS, U/D, INC;11. Resistance increase mode: Linear change;12. Working current: 3mA;13. Package temperature: 8SOIC/-40~85 C;14. Taps will automatically store data when being off.15. Package included: 1 x X9C104 Digital Potentiometer Module

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Type:Voltage Regulator1. Packaging Electrostatic bag2. It use the same as official R3 board3. Use: Instrument4. Power supply voltage: 5v~9v5. Output voltage: 5V DC voltage output and 3.3V DC voltage output6. Plug in the development board, the driver will be installed automatically7. Select the board in die8. Select the COM port, this can be queried in my computer, just the port inside your development board9. It is best to choose the program that comes with it, PROGRAMMER it in.10. Added pin header, easy to use

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Overview Due to the advantages of ultra-low power consumption, wide viewing angle, and clear display without electricity, it is an ideal choice for applications such as shelf labels and industrial instruments. Features 1. Without backlight, the last content can be displayed for a long time even if it is turned off 2. Ultra-low power consumption, basically only need to refresh the power supply 3. Attached with development resources and manuals (example of Arduin-esp32) Product specifications 1. Working voltage: 3.3V 2. Interface: 3-wire SPI, 4-wire SPI 3. Display color: black, white 4. Grayscale: 2 5. Full refresh time: 8s 6. Refresh power: 26.4mW (typical value) 7. Driver chip: DEPG0213BN ESP32 features: 1. Immersion Gold Craft 2. High cost performance 3. Small size, easy to embed other products 4. Powerful function supports LWIP protocol, Freertos 5. WiFi supports three modes: AP, STA and AP + STA 6. Support Windows system (cygwin and msys32) and Linux system 7. Support Arduino-ide, ESP-IDF, Micropython multiple development environments 8. Support Lua program, easy development

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Features1. Using Bluetooth 5.0 main control chip, good transmission effect and high stability 2. With button control, there are control up and down music, volume addition and subtraction, playback, pause, switch machine, etc., and reserved high and low level control interfaces, regardless of daily use, and DIY modification, it is very playable 3. Micro 5 Pin interface power supply, ordinary mobile phone charger charging cable can be used. 4. Product use: Bluetooth audio signals from mobile phones, laptops, and tablets can be transmitted to power amplifiers, active speakers and other devices through this Bluetooth audio receiver. The audio interface can also be connected to ordinary headphones with a 3.5mm interface. The headset becomes a Bluetooth headset (without a microphone, voice chat is not supported)Specification1. Power interface: Micro 5 Pin (reserved 2.5mm welding port, this model does not support battery power supply) 2. Input voltage: 3.7V-5V 3. Signal-to-noise ratio: 90DB 4. THD+N: -70DB 5. Crosstalk: -86db 6. DNR: 91dB 7. Transmission protocol: A2DP/AVCTP/AVDTP/HFP 8. Transmission distance: about 10 meters (the shorter the distance, the better the stability) 9. Output interface: 3.5mm stereo (reserved soldering points, you can DIY by yourself) 10 Dimensions: 30mm x 30mm

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1. The cooling fan with fan case. 2. Cooling fan fit for Raspberry Pi 3B / 2B / B+. 3. Install it on your mini computer case. 4. It helps to exhaust the hot air from inside the computer case. Improve air flow in your system. Cool down the entire case. Extend your system life span and make the computer work better.

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About the ProductThis 3.5 inch touch screen module is designed especially for Raspberry Pi, using the latest Linux Core system (vision 3.18.9), the latest Raspberry Pi official UI desktop file system and the fastest SPI transmission data, an ideal alternative solution for HDMI monitor and convenient Men-Machine interface for Raspberry Pi, combined with the portable power, DIY anywhere anytime.Features1. LCD Interface: SPI. 2. Touch Screen Controller: XPT2046. 3. Backlight: LED. 4. LCD Type: TFT. 5. Resolution: 320*480 DOTS. 6. Core System: vision 3.18.9. 7. SPI Speed: 32MHz. 8. Color Levels Index: 65536. 9. Power Consumption/Backlight Current: TBD. 10. Supports Raspbian system, enables your system to: - Play videos (supports multi formats, MP4 and so on). - Take photos by touching (up to 17 camera modes). - Support software keyboard (system interaction without keyboard/mouse). - Support driver is installed automatically.

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1. 5 million pixels mini camera. 2. Support 1080P resolution. 3. Static picture resolution is 2592 x 1944. 4. Support 1080P 30, 720P 60 and 640x480P 60 / 90 video recording.

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1. 5 million pixels camera. 2. Support 1080P resolution. 3. Static picture resolution is 2592 x 1944. 4. Support 1080P 30, 720P 60 and 640x480P 60 / 90 video recording. 5. The product is used for Raspberry Pi 3 / 2 / B+.

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Measurement range: -18 °C ~ 1150 °C ( 0 °F ~2102°F ) Accuracy: -18°C ~ 0°C( ± 3°C), 0°C ~100°C (± 1.5°C), 100°C~1150°C (±1.5%) Repeatability: 1 °C or 1% of reading Resolution: 0.1°C or 0.1°F Response Time: 500mSec, 95% response Emissivity : 0.1~1.00 adjustable Distance To Spot Ration: 50:1 Spectral response: 8~14μm Storage Temperature: -20°C ~ 60°C ( -4 °F ~140 °F ) Operating Temperature: 0°C ~ 40°C ( 32 °F ~104 °F ) Operating Humidity: 10-95% RH non-condensing, up to 30°C (86°F )

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Feature1. Ideal and necessary tools for gardeners, vegetable and fruit growers and all those who plant trees and grasses2. You can take good care of your plants.3. Suitable for indoor and outdoor plants, gardens and lawns.4. Simply insert the meter into the soil, switch to the setting you want to measure and read the scale.5. To avoid damage to the electrode, clean the electrode after each use, do not use it in soil with gems and forcibly insert

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Features Color-screen display, user-friendly interface.Bilingual choices:Chinese/English.Three alarm forms:sound/light/vibration .Data recording and review function, continuously record120,000 data logging.Charging function. Specification Gas detection:COMeasurement Range: 0~100μmo/molResolution: 1 Accuracy: When the measuring range is(0~50)mol/mol,maximum allowable error is:5mol/mol.When the measuring range is(50~1000)mol/mol,maximum allowable error is:10%Indication model:LCD display real-time date and system state,LED,sound,vibration indication alarm Response Time(90%): Less than 30 seconds Alarm: Sound and light vibration alarm Alarm Point: Adjustable Working Voltage: DC3.7V, 1800mAh Battery Model: LP103450-1800mAh rechargeable lithium batteryExplosion-proof Certificate NO.: CNEx 18.5122Explosion-proof Mark: Ex ib IIB T3 GbOperating Conditions: -20～50℃ / -4～122℉, < 95%Storage Conditions: -10～55℃ / 14～122℉, < 85%charging time:6-8hstandby time:more than 8h on end (slightly change with working state)Weight: 215.4g(with battery and back buuton)Item Size: 71 * 153* 49mm Package included 1 * Carbon Monoxide Monitor1 * Plastic Pipe1 * USB Cable1 * Gas Calibration Cover1 * Storage Box1 * User Manual

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Features 1.Color-screen display, user-friendly interface.2.Bilingual choices:Chinese/English.3.Three alarm forms:sound/light/vibration .4.Data recording and review function, continuously record5.120,000 data logging.6.Charging function. Specification Compound Gas Monitor Range Measuring item and Unit 1.Combustible gas LEL %LEL2.Oxygen O2 %VOL3.Hydrogen sulfide H2S μmol/mol4.Carbon Monoxide CO μmol/molRange:1.Combustible gas LEL: 0~1002.Oxygen O2 : 0~303.Hydrogen sulfide H2S:0~100 4.Carbon Monoxide CO :0~1000Resolution1.Combustible gas LEL: 0.12.Oxygen O2 : 0.13.Hydrogen sulfide H2S:0.14.Carbon Monoxide CO :1Accuracy: When the measuring range is(0~50)mol/mol,maximum allowable error is:5mol/mol.When the measuring range is(50~1000)mol/mol,maximum allowable error is:10%Indication model:LCD display real-time date and system state,LED,sound,vibration indication alarm Response Time(90%): Less than 30 seconds Alarm: Sound and light vibration alarm Alarm Point: Adjustable Working Voltage: DC3.7V, 1800mAh Battery Model: LP103450-1800mAh rechargeable lithium batteryExplosion-proof Certificate NO.: CNEx 18.5122Explosion-proof Mark: Ex ib IIB T3 GbOperating Conditions: -20～50℃ / -4～122℉, < 95%Storage Conditions: -10～55℃ / 14～122℉, < 85%charging time:6-8hstandby time:more than 8h on end (slightly change with working state)Item Size: 71 * 153* 49mm Package included 1 * Carbon Monoxide Monitor1 * Plastic Pipe1 * USB Cable1 * Gas Calibration Cover1 * Storage Box1 * User Manual

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Brand Name:SNDWAYInduction range:More than 50cm1. Positioning is blocked within 5cm, greatly reducing the removal area2. With 4 sets of waterproof probe sets to be replaced, all kinds of environments can cope3. 50cm signal penetration, using smart chip, the induction is stronger4. Sensitivity can be adjusted, increase the size of the induction blockage point, together with a large sound buzzer, small, small range of accurate positioning of the blockage point, can clearly distinguish the blockage position5. Built-in lithium battery, straightforward and convenient

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Features:1. With magnet adsorption2. Four-digit display for large range3. With waterproof, digital storage, lock, automatic shutdown functions4. New appearance, classic fashion designTechnical Parameters:1. Measuring range EC: 0-9999uS2. Temperature: 0-80 degrees Celsius; 32-176 degrees Fahrenheit3. Accuracy: +/-2﹪4. Battery: CR2032 button battery x1 (delivered with battery)5. Size: 15 x 2.8x 1.3cm6. Weight: 42.5 g (1.5 oz)7. Purpose: Water treatment, purification equipment, household water purifier, flower aquarium

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1. The high linear scales is designed, high , stable and accurate. 2. The signal line adopts multi-layer isolation steel and metal soft shell protection, waterproof and anti-interference fine. 3. Easy to install and maintain, waterproof, dust-proof good, long service life. 4. Widely used, high stabilization, capacity of resisting disturbance well. 5. Suitable for JCS900-2AE / JCS900-3AE data display instrument. 6. Material: metal 7. Accuracy: +-5um 8. Resolution: 5um 9. Measuring Range: 0mm-100mm

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1. The high linear scales is designed, high , stable and accurate. 2. The signal line adopts multi-layer isolation steel and metal soft shell protection, waterproof and anti-interference fine. 3. Easy to install and maintain, waterproof, dust-proof good, long service life. 4. Widely used, high stabilization, capacity of resisting disturbance well. 5. Suitable for JCS900-2AE / JCS900-3AE data display instrument. 6. Material: metal 7. Accuracy: +-5um 8. Resolution: 5um 9. Measuring Range: 0mm-300mm

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1. The high linear scales is designed, high, stable and accurate. 2. The signal line adopts multi-layer isolation steel and metal soft shell protection, waterproof and anti-interference fine. 3. Easy to install and maintain, waterproof, dust-proof good, long service life. 4. Widely used, high stabilization, capacity of resisting disturbance well. 5. Suitable for JCS900-2AE / JCS900-3AE data display instrument. 6. Material: metal 7. Accuracy: +-5um 8. Resolution: 5um 9. Measuring Range: 0mm-800mm

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1. The high linear scales is designed, high , stable and accurate. 2. The signal line adopts multi-layer isolation steel and metal soft shell protection, waterproof and anti-interference fine. 3. Easy to install and maintain, waterproof, dust-proof good, long service life. 4. Widely used, high stabilization, capacity of resisting disturbance well. 5. Suitable for JCS900-2AE / JCS900-3AE data display instrument. 6. Material: metal 7. Accuracy: +-5um 8. Resolution: 5um 9. Measuring Range: 0mm-900mm

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1. Use a 9V battery2. Measuring range: 0-5003. Resolution: 1.0mm4. Measuring accuracy: ±0.2mm5. Wide adaptability6. Low consumption, durable7. Accurate measurement and clear reading8. Fast detection speed and high sensitivity9. Adapt to the water quality of various environments and regions10. Scope of use: tunnel lining, bridges, slopes, docks, gates, continuous walls11. The use of anti-grading excitation circuit and corrosion-resistant electrode can effectively prevent the electrode from oxidizing and rusting, and keep the sensitivity unchanged for long-term use12. Size: 30x43x14.5cm13. Net weight: 2.7kg for 10 meters, 3.3kg for 20 meters, 2.85kg for 30 meters, 2.95kg for 50 meters, 4.3kg for 100 meters

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1. Material: ABS housing 2. Features: Testing gauss, keep you away from radiation , good for your health 3. Special Functions: 5-LED indicators, each represent different value of radiation; Easy to use; Powered by 1 x 9V (included) 4. Application Monitoring: 50/ 60Hz frequency 5. Other: Dark green 0 to 1.5 milliGauss; Light green 1.5 to 2.5 milliGauss; Yellow 2.5 to 10 milliGauss; Orange 10 to 20 milliGauss; Red 20+ milliGauss 6. Size: 14.3 x 5.3 x 2.9cm

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1. Model: GM510 2. With11unitsto select:bar,mbar,kPa,kgf/cm2,mmHg,cmH2O,Ozf/in2,psi,inHg,inH2O,ftH2O. 3. USB dara hold. 4. USB interface 5. Low battery indicator function 6. Auto power off. 7. A computer through a USB adapter,can be used to record special software for data analysis

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1. Ergonomically designed to fit wearing in finger 2. Portable, compact design, Light weight, easy for carry 3. With luminous function, clear to see, lower consumption Specifications: 1. Brand Name: RV77 2. DIY Supplies: Electrical 3. Type:5-digit Counters 4. Material: Plastic 5. Color: Random 6. Size: 3.8x3x1.8cm 7. Weight: 17g Package Included: 1 x Counter

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With LCD Screen Or Not:Yes Gas Type:Alcohol Resolution ratio: :0.1 Reaction time: :1 (s) Power supply: :2 x AAA battery(Not Included) Weight: :70 g Support::Dropship Features: 1. Detection range:0.000% - 0.199% BAC / 0.000-0.995 mg/l 2. Digital display results (% BAC / mg /l) 3. Quick response and recovery. 4. Automatic power outage. 5. Orange back-light. 6. Low voltage indicator. Specifications: 1. Resolution ratio: 0.1 2. Reaction time: 1 (s) 3. Power supply: 2 x AAA battery(Not Included) 4. Weight: 70g Instructions: 1. Press the switch once, the LCD screen of the tester will turn on the lights, and it will send out a "noise". 2. The state of warm up number will jump from 10 to 0, and after the state blow 10 jumps to 0, the preheating program will be completed. 3. When the countdown is 6 seconds, the mouth is close to the breath test sensor and exhaled for 3-5 seconds to the sensor. 4. The screen can read the test results.

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1. Model: ME-9101 2. Type: Wobble Stick Type, Automatic Reset 3. Power: AC 250V, 5A / DC: 115V, 0.4A 4. Mounting Hole Diameter: 4.5mm 5. Hole Center Point Distance: 56mm x 21mm 6. Stick Length: 90mm (70mm distance adjustable) 7. Body Dimension: 88 x 28 x 25mm 8. Color: Black & Blue 9. Material: Plastic, Metal & Rubber 10.Weight: 64g

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1. Material: Aluminum Shell, ABS Shell 2. Spring force is uniform and stable, fine grinding closure is good. 3. Pressure handle, circular measurement, with metric-British conversion function 4. LCD screen display, easy to use 5. Suitable for measuring all kinds of planar soft materials, such as leather, paper, film, sponge, wire, etc. 6. Size: 120*100mm

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Features1. Full view large screen digital display, with back-lighting function. 2. Ferrous & Non-Ferrous 2 in 1 integrated probe can automatically measure the coating of iron base surface and non magnetic surface coating of aluminum. 3. The design of the waist of the gauge is more convenient to measure reading, and the antiskid silicone is wrapped on both sides of the gauge. 4. There are 6pcs accurate points, 0/50/100/250/500/1000um, it is very convenient to adjust. 5. 5 minutes without operation automatic shutdown power saving.Parameters1. Model: RZ240 2. Measurement range: 0~1300um 3. Measurement accuracy: +/-(3%+2um) 4. Minimum eesolution: 0.1um 5. Working environment temperature: 0-40 degree C (32-104 degree F) 6. Humidity: 20%~90%RH 7. Battery: 4 x AAA Battery (Not included) 8. Probe F: Magnetic induction 9. Probe N: Eddy current 10. Range: 0~1300um / 0~51.2mil 11. Accuracy: +/-(3%+2um) / +/-(3%+0.08mil) 12. Resolution: 0.1um/0.01mil 13. Calibration Points: ZERO/50/100/250/500/1000um 14. Units: Um, mil

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RZ230 Paint Film Meter Tester Coating Measure Thickness Gauge Digital Portable Mini Thickness Gauge TesterIntroductions:The thickness gauge is used to measure the thickness of the plated and coatedsheeton metal, e.g. paint/enamel/ chrome on steel, paint and anodizing coating on aluminum/copper.The gauge takes the precision integrated probe, and uses principles of electro-magnetic inductionand the eddy current effect, which automatically detects the attributeof substrates. Application Field:The Gauge is designed for non-destructively measuring the thickness of coating and painting. It is essential for material surface treatment and widely used in manufacturing industry, metal-processing industry, chemical industry, commodity inspection area, and also able to work steadily in the laboratory, workshop and outdoor. Operating Principle:Thegauge adopts the principle of electromagnetic induction and eddy current effect.It has F probe and N probe.F probe works on the magnetic induction principle and should be used for detecting the non-magnetic coating’s thickness such as chrome/copper/zinc/varnish/rubber on the iron/steel substrate.N probe works on the eddy current principle and should be used for detecting the insulating coating’s thickness such as paint/anodizing/ceramics on the aluminum/copper/brass substrate.

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It transmits at a constant speed and distinguishes the waves reflected from the back of the instrument.2. It can also be widely used in manufacturing, metal processing, commodity inspection and other materials that allow ultrasonic waves.3. Ultrasonic thickness gauge is suitable for materials that conduct and reflect constant sound waves, such as metal, plastic, ceramic, glass, etc.4. The intelligent hand-held ultrasonic thickness gauge is controlled by microprocessor, which can measure the thickness quickly and accurately, and has the sound of various materials, without the need of ultrasonic measurement damage.5. The tool is capable of accurately measuring parts in different materials or industrial production, as well as monitoring pressure vessels in pipes and production equipment, and the degree of corrosion of various parts.6. Measurement range: 1.00 -300.0mm7. Data Storage: 15008.8.3 1.2V nickel-metal hydride rechargeable battery but not equipped

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feature1.2.0 inch large screen2. Rotatable display for different user views3. Measurement process.Easy to operate, directly attached to the coatingDisplay properties and thickness on the screen.4. Provide zero and multi-point calibration, calibrationReliable and fast.5. Save up to 30 sets of measurement data, power offThe datum will not be erased.6. Upper limit / lower limit warning function7. Press the power supply to automatically power offNothing happens.8. Low power indicationPackage Included1 coating thickness gauge1 plastic box1xusb cable2x calibration sheet5x standard foil1 English manual

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1. Air Velocity & Temperature Measurement；2. Max/Average/Current air velocity measurement;3. ℃/℉ Temperature unit selection;4. Five units of air velocity:M/s, Km/h, ft/min, Knots, mph5. Beaufort scale;6. Backlight display;7. Manual/Auto power shut off;8. Wind chill indication;9. Low battery indication.B. LCD

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Features1. Measurement of wind velocity, temperature and flow 2. Unit conversion of wind velocity,temperature and flow 3. Measurement of MAX and MIN wind velocity 4. Measurement of 2/3V max and average wind flow 5. Data holding,storing and deleting function 6. Low battery indicating function 7. Auto power off function (power off autocratically if no further operation for 10 minutes) 8. Large LCD display, backlight 9. Retractable drag rodSpecification1. Measuring Range: - Air Velocity: 0-45m/s, 0-140km/hr, 0-8800Ft/min, 0-88 knots, 0-100mph(accuracy +/-3%) - Air Temperature: 0 degree C~+45 degree C, 32 degree F-113 degree F(Accuracy+/-2 degree C) 2. Resolution: 1 degree C, 0.1m/s 3. Units of velocity: m/s.ft/min, knots, km/hr, mph 4. Power supply: 4 x 1.5V AAA battery (not included)

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1. Moisture measurement range: 0-50% 2. Temperature measurement range: 0-50 degree C / 32-122 degree F 3. Measurement error / moisture value: +/-1.5 4. Temperature value: +/- 2 degree C / +/- 3.6 degree F 5. Wood density range : 0.27-1.05g/cm3 6. Detection depth: 0-50mm 7. The moisture response speed: 2s 8. Displayer: LCD 9. Runs on one 9V battery 10. Data hold function (memory function) 11. Moisture limit value setting 12. Battery level indication 13. Auto power-off function

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Description: 1) Measurement through HF electromagnetic sensing 2) 10 different timber density at option 3) Automatic temperature compensation 4) Setting of upper limit of moisture content ratio, prompting of overrunning 5) Ultra-large LCD ensuring clear readings 6) Automatic prompting of low voltage Specifications: 1) MODEL: MD918 2) Measuring Range: 4%~80% 3) Max. Error: +/- 1%Rh+0.5 4) Resolution: 0.5% 5) Battery: 3 x 1.5V AAA battery (not included) 6) Size: 13.2cm x 6.7cm x 2.6cm

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1. Measurement range: 2~40%/50%/60%/70% 2. Emissivity: 0.5 preset 3. Humidity range: 20%RH~90%RH 4. The moisture response speed: 1s 5. Displayer: LCD 6. Reading lock 7. Environment temperature automatic compensation 8. Power: 2 x 1.5V AAA battery (not included)

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