Test Equipment

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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This product is mainly suitable for 1. Light steel keel ceiling construction2. Compartment construction3. Hydropower, air conditioning, fire protection pipeline erection4. Marble and floor tiles5. The overall construction of the OA series office can be used for all kinds of horizontal and vertical projects. Feature 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.Retate 360 degrees of freedom9.Automatic alignment, automatic alarm uneven product,Smart convenient, more efficient

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1. Model: ECO 4F 2. Material: food grade ABS 3. Product size: 122*52 *14 mm 4. Product weight: 330g 5. Applicable products: vegetables, fruits, meat 6. Colors: White, Black

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1. Model: ECO 4F 2. Material: food grade ABS 3. Product size: 122*52 *14 mm 4. Product weight: 330g 5. Applicable products: vegetables, fruits, meat 6. Colors: White, Black

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Feature The device utilizes the standardized scale which is accurate and easy to read. The digital display is quick and easy to read. Specifications 1.Applicable sugarsodium chloride NaClsalinity salinity specific gravityRefractive Index 2. Range:Brix :0.0~90.0%Water :38.0%~5.0%Be':33.0~48.0Refractive Index :1.3330―1.4200nD3. ResolutionBrix:0.1% Water:0.1‰ Be':0.1Refractive Index:0.0001nD 4. Accuracysalinity :±0.2%salinity:±0.2‰Be':±0.2Refractive Index:±0.0003nD Package includeed 1X Digital Refractometer1X clean cloth1Xstraw1xbox

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featureThe device is standardized and accurate and easy to read. Digital displays are fast and easy to read.Product specifications1. Apply sugarSodium chloride NaClsalinitysalinityproportionRefractive index2. Measurement range:Salinity: 0.0~28.0%Salinity: 0~280‰Proportion: 1.000~1.217Refractive index: 1.3330-1.4200nD3. Accuracy rateSalinity: 0.1%Salinity: 1‰Specific gravity: 0.001Refractive index: 0.0001nD4. AccuracySalinity: ±0.2%Salinity: ±2‰Specific gravity: ±0.002Refractive index: ±0.0003nDPackage included1X digital refractometer1X clean cloth1X manual1x box

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featureThe device is standardized and accurate and easy to read. Digital displays are fast and easy to read.Product specifications1. Apply sugarBrixSpecific gravity3. Measurement range:Brix: 0.0~50.0%Specific gravity: 1-1.1304. AccuracyBrix: 0.001Specific gravity: 0.001Package included1X digital refractometer1X clean cloth1X manual1x box

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Feature The device utilizes the standardized scale which is accurate and easy to read. The digital display is quick and easy to read. Specifications 1.Applicable sugarDextranFructoseGlucoseLactoseMaltoseRefractive Index 2. Range:Dextran:0.0―10.6%Fructose:0.0―68.9%Glucose:0.0―59.9%Lactose:0.0―16.5%Maltose:0.0―15.6%Refractive Index: 1.3330―1.5177nD3.ResolutionDextran:0.1%Fructose:0.1%Glucose:0.1%LactoseL:0.1%Maltose:0.1%Refractive Index:0.0001nD4. AccuracyDextran:±0.2%Fructose:±0.2%Glucose:±0.2%Lactose:±0.2%Maltose:±0.2%Refractive Index:±0.0003nD

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Feature The device utilizes the standardized scale which is accurate and easy to read. The digital display is quick and easy to read. Specifications 1.Applicable sugarURINE cat(sg)URINE dog(sg)S&P P.Refractive Index 2.Range:URINE cat(sg):1.000~1.060URINE dog(sg):0.0%~22.0%S&P P.:2.0~14.0Refractive Index :1.3330~1.4200nD3.ResolutionURINE cat(sg):0.001URINE dog(sg):0.001S&P P.:0.1Refractive Index :0.0001nD4.AccuracyURINE cat(sg):±0.002URINE dog(sg):±0.002S&P P.:±0.2Refractive Index: ±0.0003nD

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feature1. Measurement range: O.O5m-80m2. Measurement accuracy: ±1.5mm3. Unit of measurement: m, ft, in4. Laser type: 620-690nm5. Laser level: Level II, <1mW6. Single measurement time: 0.25s7. Working temperature: 0~ + 40C°8. Storage temperature: -20~ + 65C°9. Battery: AAA (alkaline). 2x1.5V AAA battery (without battery)10. Measurements for each battery pack: > 8000

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Feature The device utilizes the standardized scale which is accurate and easy to read. The digital display is quick and easy to read. Specifications 1.Applicable sugarBrix%VOL apOeKMW2.Range:Brix :0.0~50.0%%VOL ap :0.0%~22.0%Oe:0.0~150.0KMW :0.0~25.03.ResolutionBrix:0.1% %VOL ap:0.1‰ Oe:1KMW:0.14.AccuracyBrix :±0.2%%VOL ap:±0.2‰Oe:±2KMW:±0.2Package included1X digital refractometer1X clean cloth1X manual1x box

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Display Type:DigitalBrand Name:SNDWAYDial Diameter:1.9 Inches & UnderModel Number:SW5121. Measurement error: +/- 0.3% FS2. Repeatability: +/- 0.25% FS3. Max pressure: 10psi4. Pressure connector: 1/8 quick connector 1 pc5. Pipe: Dia 5mm Hole 3mm Length 28cm 4 pcs6. Operating temperature : 0-40 degree C7. Overtravel prompt: ERR1 or ERR28. Power supply: 3 xAAA battery without

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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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Feature 1.Fast and easy measurement。2.Non contact precise IR and TK temperature measurement。3.Built-in laser pointers increase the target accuracy。4.Adjustable emissivity:0.1~1.0,adjust the corresponding emssivity according to different object5.℃/℉ selection,MAX,MIN,AVG,DIF function6.REC memory function for 99 groups7.Color LCD display 8.Resolution 0.1℃/℉9.Automatic Trigger Off10.Automatic power off Package included 1 x Non-Contact Infrared Thermometer (no including battery)1 x English Manual

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1. Divided into 4 gears, ??1 gear: 0.0 - 199.9Lux, ??10 gears: 20.0*10 - 199.9*10Lux, ??100 gears: 20.0*100 - 199.9*100Lux, ??1000 gears: 20.0*1000 - 199.9* 1000Lux 2. Can be connected by Bluetooth, easy to use 3. USB computer analysis software, data automatic / manual storage 4. Backlight and data retention, automatic switch meter settings 5. Good quality and long service life

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1. Sensitivity: 50ppm 2. Reflect time: 2 seconds 3. High sensitivity and fast response 4. 16-inch long gooseneck 5. Good quality and long service life

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1. Highest real-time sampling rate: 1Msps2. Accuracy: 12Bit3. Sampling buffer depth: 1024 bytes4. Analog band width: 0-200KHz5. Vertical sensitivity: 5mV / Div – 20V / Div (progressive in 1-2-5 way)6. Adjustable vertical displacement with instructions7. Input impedance: 1MΩ8. Maximum input voltage: 50Vpp (1: 1 probe), 400Vpp (10: 1 probe)9. Coupling methods include: DC / AC / GND10. Horizontal time base range: 10μs / Div – 50s / Div (progressive in 1-2-5)11. Trigger mode: With automatic, regular and single shot, easy to capture instantaneous waveform12. Trigger on rising or falling edge13. Trigger level position is adjustable, with indication14. Observe waveform before trigger (negative delay)15. Freeze waveform display at any time (HOLD function)16. Signal source: Comes with 1KHz /3.3V square wave test17. The parameters that can be displayed are: frequency, period, pulse width, duty cycle, maximum value, minimum value, average value, peak-to-peak value, and effective value.18. Save / recall waveform, the waveform does not disappear after shutdown19. Packing list:20. 15001K (SMD components are soldered)

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1. Practical and hard aluminum alloy shell with long service life.2. The strong magnet at the bottom absorbs the workpiece for easy measurement.3. Data hold and slope function, large LCD backlit display, easy to read measurement data.4. Relative / absolute measurements are interchanged at any position.5. Portable size, easy to use with other measurement tools and expand the measurement range.6. It is widely used in the wood processing industry for household or industrial use (especially furniture manufacturing).7. Material: aluminum alloy + ABS8. Display mode: LCD backlight display9. Measuring range: 4 x90 degrees10. Resolution: 0.05 degrees11. Accuracy: +/- 0.2 degrees12. Repeatability: 0.1 degree13. Battery: 2 X AAA batteries (not included)14. Working temperature: 0-40 degrees Celsius15。 Item size: 56x56x26mm

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1. Features:- High sensitivity, wide measuring range and long service life.- Using precision G-M tube as the core sensor.- Can be applied to material inspection, environmental testing, radiological protection, radiopharmaceutical screening, etc.2. Material: ABS3. Detectable species: Beta, Gamma, X-ray4. Sensor type: G-M tube5. Energy range: 50kev-1.5mev is less than 30%6. Relative inherent error: less than or less than 10%7. Sensitivity: 80cpm / μSV / Co-608. Maximum dose equivalent rate: 99.99μsv / h9. Voice source: real particle sound / alarm sound / mute10. Alarm threshold: 0.5 / 1.0 / 2.0 / 5.011. Use ambient temperature: -25 ~ + 45 degrees Celsius12. Relative humidity: less than 95%13. Power supply: Lithium battery charging (with battery)

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1. This frequency meter can measure the frequency parameters of continuous carrier signal (intercom, cordless phone) and digital signal (GSM, CDMA, PHS, wireless remote control, etc.), with signal strength indication. It is a maintenance staff, wireless enthusiasts to test the frequency And the preferred tool for signal strength.2. Frequency counting resolution: 200K (dedicated for digital signal), 1K, 100HZ, optional3. Test distance: 450M is about 8 meters. 150M is about 5 meters (please test with actual distance, different instruments have different distances)4. Test range: 50MHZ --- 2400MHZ5. Battery: 9V laminated battery 6F226. Automatic shutdown: 2 minutes (200K file without automatic shutdown)

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1. Number of channels: 22. Bandwidth: 20 (MHz)3. Sampling rate: 48M (GS / s)4. Dimensions: 130 * 110 * 60 (mm)5. Weight: 0.5 (kg)6. Application: 3-in-1 multi-function, with functions of digital oscilloscope, spectrum analyzer and data recorder; oscilloscope probe uses standard BNC connector, and can also be replaced with 100X or high-voltage probe and probe7. Special design: carefully designed 20M bandwidth, 48M sampling rate, 2 channels, two-channel virtual oscilloscope, spectrum analyzer and data recorder that alternately support X, Y and X, Y alternate modes.8. Applicable scenarios: vehicle maintenance, electrical appliance maintenance, mobile phone maintenance, research and teaching9. Packing includes: host x1, USB test line, probe x2, CD x110. Advantages: compact and portable, can be directly put into the computer bag, easy to carry and teach

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1. Dimensions: 132×69×31mm2. Weight: 200 grams3. Reading display: 3-1/2 digit LCD4. Gear position: electric field-V/m (volt/meter); magnetic field--uT (micro Tesla)5. Accuracy: electric field: 1V/m; magnetic field: 0.01μT6. Range: electric field: 1V/m-1999V/m; magnetic field: 0.01uT--19.99uT7. Alarm threshold: electric field: 40V/m; magnetic field: 0.4uT8. Test bandwidth: 5Hz-3500MHz9. Sampling time: about 0.4 seconds10. Sensor head: single axis (top of instrument)11. Overload prompt: LCD displays "1"12. Operating temperature: -15℃-+60℃13. Operating humidity: relative humidity below 80%14. Working voltage: 9V (6F22 9V battery) (not included)Application range:1. Outdoor environment electromagnetic radiation test application: all electromagnetic radiation sources within the instrument test technical indicators, such as substations, high-voltage lines, transformers, power distribution rooms, cables, mobile phone towers, TV signal towers, broadcast signal towers, etc. 2. Indoor environment electromagnetic radiation test application: computers, televisions, copiers, fax machines, air conditioners, refrigerators, stereos, washing machines, wires, power supplies, mobile phones, wireless routers, etc. All electromagnetic radiation sources within the instrument test technical indicators

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1. Support six test wavelengths: 850/1300/1310/1490/1550/1625nm 2. Support SC/FC interface 3. Support red laser test 4. Detector type: InGaAs 5. Deviation: +-5% 6. Red Laser working wavelength: 650nm 7. Working temperature: -10~+60 degrees Celsiu 8. Storage temperature: -25~+70 degrees Celsius 9. Automatic shutdown time: 10 min 10. Power supply: 1.5V AA x 3(Not include)

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1. Working voltage: 3V2. Working current: 10uA3. Rated power: 0.03W4. Dimensions: 131x25.1x10.9 mm5. Battery: CR20326. When there is less water, the red light flashes once every 5 minutes7. One-key real-time monitoring of the current soil state and moisture content8. Insert into the soil, do not need to pull out for long-term monitoring, a must for lazy people to grow flowers9. Three kinds of red, green and blue indicator lights, according to different water content, adapt to common flowers and plants, select indicator range according to different plant characteristics

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1. Material: PPO shell, inner core galvanized copper2. Weight: About 42 grams3. Size: about 16.3x2.9x1.6 cm4. Test items: TDS/conductivity/temperature5. Test range: 0-9999PPM6. Resolution: 1PPM7. Temperature test range: 0-99 degrees Celsius8. Accuracy: +/-2%9. Power supply:Contains a 3V button battery (CR2032)10. Scope of application: Used in water treatment industry, drinking water industry, family, personal home travel, field work, etc. as a drinking water quality inspection tool11. Features: LED backlight display, convenient reading, clear eye protection, data retention, Fahrenheit/Celsius conversion, high-precision probe, light and portable12. Note: When the PPM value is less than 40, the backlight is green; when the PPM value is greater than 40, the backlight is red13. Influencing factors: Water temperature, TDS pen can not be used to measure high temperature water (for example: hot water); water flow rate, TDS pen can not be used to measure water with large shaking; region, each region, city due to different pipelines and water sources , TDS values are different

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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-200mm

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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-400mm

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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-500mm

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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-600mm

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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. 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. 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. 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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Features1. 6 optic wave length for selection, including 850nm, 1300nm, 1310nm, 1490nm, 1550nm and 1625nm. 2. Universal optic interface design, FC converter for FC/SC/ST interface. 3. Reading unit switching between absolute power and relative power. 4. Battery volume display, reminding you to replace batteries in time. 5. 10 minutes auto power off to save power. (This function can be set off.) 6. Light weight & mini size & low power consumption. 7. Widely applicable to optic fiber engineering, optic fiber sensor research, optic elements production, optic elements research, etc.Specification1. Material: ABS 2. Power Supply: 2 x 1.5V AAA battery (Not included) 3. Measuring Range: -70~+6dBm 4. Wavelength: 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm 5. Resolution: 0.05 6. Accuracy: Greater than or equal -48dBm, +/-2dBm; Less than or equal -48dBm, +/- 3.5dBm 7. Operation Environment(Greater than or equal -48dBm): 0~40 degree C (32~104 degree F), 5~95% 8. Operation Environment(Less than or equal -48dBm): 0~32 degree C(32~89.6 degree F), 5~80% 9. Storage Environment: 0~40 degree C(32~104 degree F), 5~95% 10. Auto-off: 10 minutes

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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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Pure carbon monoxide (CO) is colorless, odorless, and non-irritant gas: molecular weight: 28. 01; Density: 1. 250g/ l; freezing point: - 207C; boiling point: - 190C. Its solubility in water is quite low, but it dissolves instantly in ammonia water. Air mixed explosion limit is between 12. 5% and 74%. After entering human body, carbon monoxide will combine with hemoglobin in blood, making the hemoglobin not able to combine with oxygen, which causes oxygen deficit to organism organization, leading to death from suffocation. Therefore, carbon monoxide is toxic, and is colorless, odorless, and tasteless, which is easy to be ignored and thus causing poisoning. The carbon monoxide detector can detect the concentration of carbon monoxide gas, and observe the value of carbon monoxide gas concentration at any time. It has a very clear large LCD screen, sound and light alarm prompts, to ensure that dangerous gases can be detected under very unfavorable working environments and prompt operators to prevent them in time. It is widely used in petroleum, chemical, coal, metallurgy, papermaking, fire fighting, municipal administration, telecommunications, food, textile and other industries. 1. Gas Tested: CO in the air 2. Measuring Range: 0-1000ppm 3. Resolution: 1ppm 4. Minimum Reading: 1ppm 5. Basic Error: +/-5%(f.s), +/-10ppm 6. Response Time: 60 seconds 7. Sensor Type: Electrochemical CO sensor

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Features 1. Split Type Design: the separation of the measurement part and reading part with retractable spring can avoid the influence of strong light on the naked eye. 2. Wide Measurement Range: 0-200000 lux and 0Fc ~ 20000Fc with switchable units of Lux / Fc and temperature units of degree C / degree F. 3. Large illumination probe effectively increases the measurement area with better processing efficiency in higher or narrower measurement environment. 4. 2 recording modes: automatic storage of illumination data (up to 2000 groups) and manual storage (up to 60 groups). 5. MAX / MIN / Difference Value / Data Hold functions, high accuracy with automatic range and quick response. 6. Large and clear LCD display with backlight for easy reading. 7. Low battery indication & auto power off, energy saving. 8. Widely used for monitoring light intensity in homes, laboratories, office, schools, indoor farming, etc. Specification 1. Material: Plastic 2. Measuring Range: 0 Lux ~ 200,000 Lux, 0Fc ~ 20000Fc 3. Power Supply: 3 x 1.5V AAA Batteries (Not Included)

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Features1. Measurement: With high sensitivity detector to pick up temperature and humidity with quick response and high precision, it can review the readings of the current, MAX, MIN, up limit and low limit data. Automatically record and store the data of temperature and humidity. 2. Data Transfer and programming: directly connect the device with PC USB interface to transfer data with PC and to set up sampling period, storage interval and alarming. 3. Analyzing: With specialized software to analyze the data of temperature and humidity with easy and reliable operation. 4. Safety: Bracket allows screw fastening with transparent water dust proof cover to protect the device from moisture and a up low limit can be set to alarm is overflow readings. 5. Convenience: It is compact and portable to be placed and worked like a flash disk. Besides, can be displayed with battery volume alert.Specification1. Temperature measuring range: -30-80 degree C 2. Humidity measuring range: 0~100%RH 3. Memory size: 32256 4. Power: 3.6V Lithium Battery (included) 5. Accuracy tolerance: +/-0.3 degree C (typical),+/-2%RH(typical) 6. Repeatability: +/-0.1 degree C (typical) 7. Size: 126 x 28 x 21mm

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