Consumer Electronics

1. Two sets of 3.3V and 5V DC output pins are on board, which is convenient for external use2. The upper and lower two channels are independently controlled, which can be switched to 0V, 3.3V, 5V3. Output current: Less than 700ma4. Output voltage: 3.3V, 5V can be switched5. Input voltage: 6.5-12V (DC) or USB power supply6. Dimensions: 32.2 x 52.8 x 20.7mm

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1. Using Bluetooth 5.0 master chip, JL6925A, true stereo 5.0 chip. Good sound quality 2. Support automatically back to connect function, support to decode WAV/APE/FLAC/MP3 files losslessly, support to output stereo. Specifications 1. Power Supply: 3.7-5V 2. SNR: 90dB 3. THD+N: -70dB 4. Crosstalk: -86dB 5. DNR: 91dB 6. Support Profile: A2DP/AVCTP/AVDTP/AVRCP/HFP 7. LOS: >15m Interfaces 1. USB powered: Micro USB 5V power supply 2. 3.7-5V Supply board: External 3.7-5V lithium battery power conversion 3. LED indicator: Bluetooth mode long blue light 4. 3.5mm stereo audio interface: Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices Pair Instructions After the power is turned on, the blue indicator lights up and enters the Bluetooth mode; The English"The bluetooth device is ready to pair" is displayed, indicating that the Bluetooth mode is entered and waiting for pairing; The"JH_BT" searched by the mobile phone Bluetooth is the device name of the decoding board. Click on the connection, the decoder board prompts" The bluetooth device is connected successfully", indicating that the decoder board and the mobile phone are connected successfully, you can play music.

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1. Material: plastic, metal 2. Size: 3*3*2cm 3. Weight: 15g

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1. Type: Shield 2. Mainly Compatible with: Ardunio

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1. This is a cloud intelligent hardware development board kit, simple and cost-effective 2. Use EMC's witty cloud SDK to quickly realize the secondary development 3. The DEMO board can use mobile phone to control the panel mount of RGB colorful lights and display environment brightness by photosensitive resistance through APP of mobile phone 4. Only needs half an hour modification, you can create your own remote control device system.

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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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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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This board can be used with Arduino /Raspberry Pi boardModule itself can adapt 3.3V and 5V systems without level conversion.Features1. Within -40 degree C to +85 degree C temperature range, timing accuracy is maintained at +/- 5ppm (+/- 0.432 sec / day).2. Provide battery backup for continuous timing.3. Low-power.4. Device package and function compatible with the DS3231.5. Complete clock functions include seconds, minutes, hours, day, date, month and year timing, and provide valid to 2100.6. Two calendar alarm.7. 1Hz and 32.768kHz output.8. Reset button and button input.9. High-speed (400kHz) I2C serial bus.10. +2.3 V to +5.5 V supply voltage.11. +/-3 degree C accuracy digital temperature sensor.12. -40 degree C to +85 degree C operating temperature range.13. 16-pin SO (300mil) packageSpecification1. Brand: Landa tianrui2. Model: LDTR-WG02113. Quantity: 1 piece4. Color: Black5. Material: PCB6. Chipset: DS32317. Dimensions: 2.2 cm x 1.2 cm x 0.5 cm8. Weight: 5g9. Package List: 1 x DS3231 Clock Module

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1. Concealed card holder, zero protrusion, integrated with Raspberry Pi development board, beautiful and convenient for experiment. 2. Let the Raspberry Pi development board have more extra storage space. 3. Secure backup, do not worry about data loss. 4. Read and write speed is fast. Specification: 1. Concealed. 2. Is the metal border: No. 3. Size: 24x16mm. 4. Applicable objects: Strawberry pie development board or other equipment (computer) with suitable SD card slot size. Please note: This ferrule is only suitable for devices that use the SD card slot connector, not for the TF card slot connector.

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1. 5MP night vision camera with 2 PCS IR sensor lights, support infrared night vision function. 2. Support 1080P resolution. 3. Focal adjustable, focal length: 3.6mm. 4. With 4 screw holes: The screw hole on the camera is used to both fix the infrared lights and though the power for the lights. You can use a small screwdriver to install the lights easily. 5. Support 3.3V power output.

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1. This case is specifically designed for Raspberry pi 3. 2. The shell is made up of 9 layers acrylic boards and has different ports and button position. 3. It have many ventilation ports in side and covering, good heat dispersion. 4. Special design to install a cooling fan. 5. The cooling fan helps to exhaust the hot air from inside the device case. Improve air flow in your system. Cool down the entire case. Extend your system life span and make the device work better.

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1. This case is specifically designed for Raspberry pi 3. 2. Made of ABS material. 3. Has different ports and button position design. 4. It have many ventilation ports in side and covering, good heat dispersion. 5. Special design to install a cooling fan (Not included).

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1. This case is specifically designed for Raspberry pi 3. 2. The shell is made up of 9 layers acrylic boards and has different ports and button position. 3. It have many ventilation ports in side and covering, good heat dispersion. 4. Special design to install a cooling fan (Not included).

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1. The product is used for Raspberry Pi 3 / 2. 2. It dissipates heat off your Raspberry Pi in high efficiency, improving its performance. 3. The cooling heatsink have special stickers affixed, just tear off the paper, easy to install.

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1. Compatible with any version of Raspberry Pi 2. With infrared light 3. You can adjust it based on the distance 4. On board photoresistor, on board adjustable resistor; Operation: connect LED board and PCB board of camera w/ screw, adjust resistor of LED board (IR light auto work when it is dark and auto off if it is bright). Product Description: 1. 500M pixels 2. OV5647 sensor chip Camera Parameters: -CCD size: 1/4 inch -Aperture ( F ): 1.8 -Focal length ( focal length ): 3.6mm ( adjustable ) -Viewing angle ( diagonal ): 75.7 degree -Sensor pixels: 1080P 4 Screw Holes: -Be used in a fixed position -Support external 3.3V power supply -Support infrared lamp or fill light

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1. Type: T Shape GPIO Expansion Board V1 2. T Shape GPIO Expansion Board V1 Works with Raspberry Pi B+ 3. Easy and convenient to use

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1. Plug and play USB interface. 2. 16384 data storage. 3. Adopt high precision digital temperature and humidity sensor. It has the characteristics of high precision, fast speed and good stability, and is suitable for data collection and recording of ambient temperature and humidity. 4. Automatically generate PDF files for easy download, analysis, export and print data. 5. Two fixed methods. The 3M adhesive tape is fixed, and after peeling off the 3M adhesive film, it is stuck in a flat and smooth position. Use the expansion screw to secure the bracket. 6. Widely used in indoor temperature measurement, pool management, logistics and transportation, communication room, intelligent buildings, subway, shopping malls, libraries and other places and occasions. Parameter: 1. Size: 7.6x4.2x2.5cm. 2. Power: CR2032 button battery. 3. Temperature measurement range: -40-70 degrees Celsius / -40-158 degrees Fahrenheit.

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Function description: 1. The circuit breaker search function automatically adjusts the sensitivity to quickly and accurately find the target circuit breaker. 2. Socket test function, test whether the three-pin socket connection is correct. Beep warning and light prompts. 3. Flashlight lighting function. 4. Battery low pressure warning. 5. Applicable to AC 110V. 6. Working temperature: 0-50 degrees Celsius. 7. Material: ABS. 8. Power: 1 x 9V battery (not included). 9. Applicable to home, office, power grid transformation, installation and acceptance projects. Warning: Do not use when the voltage exceeds 120V / 230V AC. You can turn on the flashlight in a dark environment. Maintenance: 1. Wipe clean with a dry cloth. 2. When the yellow LED is lit, unscrew and remove the cover and insert a new 9V battery so that the MS5902 maintains a good balance.

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This refractometer is designed to measure the following items:A. The freezing point of Antifreeze based on Propylene Glycol and Ethylene Glycol. It can not measure the antifreeze based on methanol.B. The freezing point of Automotive glass water. It can not measure the glass water based on methanol.C. The concentration of Automotive Adblue (Urea)D. The Specific Gravity (sg) of the rechargeable battery fluid.It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature.

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This Alcohol refractometer is designed for the measurement of distilled beverages (ethanol with water) like whiskey, brandy, fruit brandy, slivovitz, vodka, gin, tequila, Chinese alcohol, etc. It has a scale in the range of 0 - 80 % (VOL - alcohol volume percent).

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This High concentration Brix Refactometer is a Versatile refractometer, with a brix scale of 0~90%, perfect for sugar measurement, contribute much for the management of product quality, delivery inspection, sweetness classification and so on. It is widely used in the manufacture or production of sugar, food, fruit, beverages etc. With a higher measuring range (Brix 0~90%), this refractometer can be used to measure from low to high sugar objects, such as honey, strong sugar water etc. Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, French, German, Spanish, Italian, Japanese, Russian. One Cloth bag for the convenient of customer is provided. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Cushioned with soft & comfortable non-slip rubber Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not required

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This refractometer is used in salt solution testing, seawater control industry and aquariums, oceans, fisheries, farms in the salt content of seawater, and low concentrations of salt in processed foods, or used to detect the specific gravity of the salt solution. Can also be used for medical institutions, university research and so on.If you grow your own fruit and vegetables to produce homemade pickles or to freeze, this refractometer will give you the information that you need to ensure your end products quality.Vital if you need to check salt levels when preparing sea food and other ocean by-products.Healthy fish are happy fish! Ensure the percentage of salinity in your aquarium or pond is just how your fish like it.Essential piece of equipment used in research and clinical laboratories for checking and maintaining stock solutions and dilutionsVital for students of Oceanography for determining the soil quality, research and clinical laboratories and marine industry It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature. 2 in 1 design to measure the Specific gravity (sg) of the salt solution and concentration of Nacl Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not required We provide Manual in English, French, German, Spanish, Italian, Japanese, Russian .

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This refractometer is for measuring the Sugar Content and Special Gravity of wort. It includes an automatic temperature compensation of 10~30 degree Celsius. This refractometer can replace your hydrometer for easier and more accurate measurements. Simply use the dropper to take a sample of wort and put it on the prism. Then hold the refractometer up to the light and look through the eyepiece. Due to the dual scale there is no need convert to specific gravity as the scale measures both Brix and SG. Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, French, German, Spanish, Italian, Japanese, Russian. One Cloth bag for the convenient of customer is provided. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not required

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This Specific Grape wine refractometer is used to measure the sugar content of the grape juice (see the Brix scale on the left) in the brewing process. Then, according to the sugar content of the grape juice, we can understand the alcohol concentration of the grape wine after brewing. It can measure both the sugar content of the grape juice and the alcohol concentration of the grape wine. It can not be used to test the alcohol concentration of the finished grape wine. It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature. Dual-scale design to measure the sugar content of the grape juice (0~40%) and the alcohol concentration of grape wine (0~25%). Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, Russian. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not required

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The brix and water content, and the baume are always importance to prove the honey's quality. Our honey refractometers are best tool to the farmer to test their honey. This optical refractometer (honey meter) has scales in the range of 12 - 27 % for measurement of honey moisture. The reading resolution is 1 %. It is suitable not only to beekeepers but also for all who needs check bee honey quality (e.g. in food industry).The other two scales offer possibility of reading the sugar content. It is widely used in the manufacture or production of sugar, food, fruit, beverages etc Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, French, German, Spanish, Italian, Japanese, Russian. One Cloth bag for the convenient of customer is provided. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Cushioned with soft & comfortable non-slip rubber Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not required

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This Pet Clinical Refractometer is used to measure the following items: 1. The Specific Gravity of Large Animal's Urine, especially dog 2. The Specific Gravity of Cat's Urine 3. The Concentration of Serum Protein or Plasma Protein It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature.

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Measuring Range:Salinity: 0-28%Minimum Division: Salinity: 0.2%Reference Temperature: 20 CATC range: -10~30 C (50~86 F)

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1-Measurement range: -32 C ~ 280 C ( -26 F ~536F )2-Accuracy: -32C ~ 0C( ± 3C), 0C ~280C (±1.5%)3-Repeatability: 1 C or 1% of reading4-Resolution: 0.1C or 0.1F5-Response Time: 500mSec, 95% response6-Emissivity: 0.95 Preset7-Distance to Spot Ration: 8:18-Spectral response: 8~14μm9-Storage Temperature: -20C ~ 60C (-4 F ~140 F)10-Operating Temperature: 0C ~ 40C (32 F ~104 F)11-Operating Humidity: 10-95% RH non-condensing, up to 30C (86F) 1-100% BRAND NEW!2-Color: As the picture3-Laser pointer for accurate target aiming4-Simple one-handed operation5-Laser ON/OFF Switch6-Low battery indication7-LCD backlight system for operation under poor illumination8-C /F temperature unit conversion9-Automatic Power off in 7 seconds without any operation10-Display hold, Scan function

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1. High-precision laser sensor, accurate and sensitive, so that the original shape of the contaminated particles is exposed. 2. Real-time monitoring of humidity, temperature, PM2.5. 3. When PM2.5 exceeds the alarm value, the instrument flashes red data. 4. Short press SET to set the alarm value, and the screen flashes to display the current alarm value (the instrument default alarm value is 115??g/m3). 5. With it, you can easily grasp the performance of the purifier. 6. Built-in 580mAh lithium battery, with the charge, not afraid of power off. Fast charging in 30 minutes, full charge for 4.5 hours or more. 7. Compact and portable. 8. Suitable for multi-scene use, such as car, office, outings, home, etc. Specification: 1. PM2.5 measurement range: 0-500 micrograms per cubic meter. 2. PM2.5 single response time: less than 1s. 3. PM2.5 comprehensive response time: less than or equal to 10s. 4. PM2.5 resolution: 1 microgram per cubic meter. 5. Temperature measurement range: -10 to 50 degrees Celsius. 6. Temperature measurement accuracy: +/- 0.3 degrees Celsius. 7. Humidity measurement range: from zero to ninety-nine percent RH. 8. Humidity measurement accuracy: +/- 3 percent RH. 9. PM2.5 sensor: Climbing laser particle sensor. 10. Charging mode: DC 5V 500mA Micro USB interface. 11. Built-in lithium battery: 580mAh. 12. Net weight: 86g.

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One detector with two uses, it can test the electric field and the magnetic field radiation at the same time.When the test result exceeds the safe value, the instrument will alarm automatically.Data hold and clear LCD display, one-key can lock the radiation value and easily read the value.Radiation assessment can remind you whether the radiation value is safe.Easy to use and operate, easy to move or for on-site measurements.Electromagnetic radiation monitoring: household and appartment, office, outdoor and industrial site.Electromagnetic radiation test: mobile phone, computer, TV set, refrigerator and high voltage cable radiation test.Radiation protection product test: test effects of radiation-proof clothes, radiation-proof film and other prevention articles.Equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the clear LCD digital display after processing by control micro-chip.

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1. Powerful inner core,accurate measurement. 2. Powerful laser enhancement point. 3. Automatic leveling &Alarm cue,AC and DC dual use. 4. Anti falling and dust,strong waterproof. 5. 1 perpendandicular line + 1 horizontal line+1 bright spot 6.can be hung on the wall,Any highly available 7.Light and practical easy to carry 8. Due to transportation reasons, the product does not contain batteries.8.Retate 360 degrees of freedom 9.Automatic alignment, automatic alarm uneven product,Smart convenient, more efficient Descriptions: 1. LOMVUM Laser level is a control tool consisting of a laser beam projector. 2. LOMVUM laser beam is fanned to produce a thin plane beam accurately horizontal or vertical. 3. Laser levels are used wherever accurate verticals and horizontals are required, typically in the construction and cabinetry industries.

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1. ABS plastic case is light in weight and durable.2. Relative/absolute measurement interchangeability angle and slope reading at any position Convert the measuring surface with built-in magnet for easy connection to the object to measure the workpiece.3. Automatically close the portable size within 5 minutes, which is convenient for use with other measuring tools to expand the measurement range:4. Drain angle and runoff slope level and tractor work alignment Set the blade angle of the circular saw blade Tool setting on the lathe, table saw, connecting table, band saw connecting fence or band saw platform monitoring5. Easy to carry, can be measured anytime, anywhere.

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featureSturdy and lightweight aluminum bodyHigh quality and accurate test resultsATC compensation range (ie built-in automatic temperature compensation system), temperature range from 10 ° C to 30 ° CEasy to useDouble ratio: Brix and specific gravity ratioFull range 0 to 40% Brix, 0.1% gradeRugged metal body made of durable aluminumOnly ambient light sourceCompact design with rubber handleAdjustable focal lengthHeavy weightClear display scaleSoft and flexible eyepiece for comfort during viewingSimple and convenient manual calibrationInstant and reliable aqueous solution measurement Package includeded 1 x Refractometer1 x Plastic pipette1 x Mini Screw Driver1 x Cleaning Cloth1 x Plastic Box

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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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Feature1. Excellent accuracy:Equipped with Silicon Labs' clock generators, TDK capacitors and STMicroelectronics with an accuracy of ±1/25" and a measurement range of up to 131 feet to meet your routine measurement needs.2. Easy to use:Simple one-button operation - Press the button once to start the measurement. With a weight of 28 grams, this laser measurement is compact and can be placed in any pocket. With a backlit color display, measurements can be easily read even in dark environments.3.DURABLE:The laser distance measurement is IP54 and can withstand harsh site conditions such as dust; 3,000 measurements per charge.4. Home decoration5. Office layout6. Interactive teaching7. Construction surveyspecificationProduct Name: LS-1 intelligent rechargeable digital laser range finder range finder range finder measurementModel: LS-1Material: aluminum alloyProduct Type: Portable Laser Range FinderUnit of measurement: m (meters), feet (feet), inches (inches)Measurement accuracy: ±2mmWorking temperature: 5 ° C -40 ° CStorage temperature: -20 ° C -60 ° CDurability: 180mAh / about 3,000 timesMeasuring range: 0.03-40mLaser type:620~670nm, <1mwCharging mode: DC 5V <0.2A Package Included1x LS-1 laser range finder1x hand strap1 USB charging cable1x user manual

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Feature1. Excellent accuracy:Equipped with Silicon Labs clock generators, TDK capacitors and STMicroelectronics with an accuracy of ±1/25" and a measurement range of up to 131 feet to meet your routine measurement needs.2. Easy to use:Simple one-button operation - Press the button once to start the measurement. With a weight of 28 grams, this laser measurement is compact and can be placed in any pocket. With a backlit color display, measurements can be easily read even in dark environments.3.DURABLE:The laser distance measurement is IP54 and can withstand harsh site conditions such as dust; 3,000 measurements per charge.4. Home decoration5. Office layout6. Interactive teaching7. Construction surveyspecificationProduct Name: LS-1 intelligent rechargeable digital laser range finder range finder range finder measurementModel: LS-1Material: aluminum alloyProduct Type: Portable Laser Range FinderUnit of measurement: m (meters), feet (feet), inches (inches)Measurement accuracy: ±2mmWorking temperature: 5 ° C -40 ° CStorage temperature: -20 ° C -60 ° CDurability: 180mAh / about 3,000 timesMeasuring range: 0.03-40mLaser type: Class0.620~670nm, <1mwCharging mode: DC 5V <0.2A Package Included1x LS-1 laser range finder1x hand strap1 USB charging cable1x user manual

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Item type:Outdoor expansion equipmentBrand Name:WoSporTSpecification :1. Product name: WST LCD screen display chronograph2. Product battery: Built-in(400mA)3. Product chip: UNR 372U4. Charging voltage: DC 5.0V5. Tripod: Standard camera stand (additional gift)6. Whether support Android system and IOS system:Yes7. Language selection: Chinese(simplified), Chinese(traditional), English, German, Italian, Japanese, Russia, Polish (Phone APP)8. Bluetooth version: 2.0 9. Product size: 130*110*60mm 10. Product weight: About 250g （net weight) 11. Product components: Chronograph, tripod and USB

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1. Large screen digital display interface2. Long enough aluminum probe to adapt to multiple soil environments3. Convenient temperature metric conversion function4. Power shortage prompt function5. Power-saving automatic shutdown function: 5 minutes without any operation, automatic shutdown6. Power supply: 1*9V battery (without battery)1. One product2. A manual3. A box

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Functional characteristicsElectromagnetic radiation detector has the following characteristics1. Two uses of a detector, simultaneous detection of electric and magnetic field radiation.2. Color screen display.3. Sound and light alarm, automatic alarm4. One data is locked. Press one button to lock the radiation value.5.LCD graphic display radiation value trend

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Measuring Rang : 30-130dBA Accuracy +-1.5dBFrequency response :31.5HZ-8KHZFrequency weighting : A weightResolution: 0.1dB Working temperature and humidity：0-40 10-80%RHStorage temperature and humidity ：-10-60 ，0~90%RH

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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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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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Features1. The screen is flipped;2. Acceleration high and low frequency switching measurement;3. High frequency (1KHz~10KHz) low frequency (20Hz~1KHz)4. Curve display;5. File save view;6. Power display;7. Double measurement button;8. Flashlight;9. Screen brightness;10. Chinese and English choices;11. Set the shutdown time;12. Machine grade;

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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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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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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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1. Powerful inner core,accurate measurement.2. Powerful laser enhancement point.3. Automatic leveling &Alarm cue,AC and DC dual use.4. Anti falling and dust,strong waterproof.5. 1 perpendandicular line + 1 horizontal line+1 bright spot6.can be hung on the wall,Any highly available7.Light and practical easy to carry8. Due to transportation reasons, the product does not contain batteries.8.Retate 360 degrees of freedom9.Automatic alignment, automatic alarm uneven product,Smart convenient, more efficientDescriptions:1. LOMVUM Laser level is a control tool consisting of a laser beam projector.2. LOMVUM laser beam is fanned to produce a thin plane beam accurately horizontal or vertical.3. Laser levels are used wherever accurate verticals and horizontals are required, typically in the construction and cabinetry industries.

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Feature1. Widely used in various fieldsThe refractometer measures sugar concentrations in fruits, beverages and vegetables and can be used in beverage quality management, the food industry sector, agricultural production science research, and in the manufacture of beer and wine.2. Function Temperature compensationRefractive index display functionSugar concentration measurement3. IP65 dustproof and waterproofSample tank design, corrosion resistant4. Backlit LCD displayRefractive prism, high resolution and high precision5. Rechargeable battery Low power consumption20,000 measurements after full chargeProduct specificationsModel Name: SW-593Range: 0-55% BrixTemperature compensation: 10 ° C ~ 40 ° CAmbient temperature: 10 ° C ~ 40 ° CFully charged: about 20,000 timesResolution: Brix 0.1%Accuracy: ±0.2% Brix / ±1 °CBattery: 2x1.2V AA 2100mAh NiMH batteryProduct size: 300g / 120x55x30mmPacking size: 330g / 170x115x65mm Package Included1 * SW-593 refractometer device1 * USB charging1 * User manual,1 * lens cleaning cloth2 * 1.2V AA rechargeable battery1 * straw

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