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Air Quality Meters
Automotive Testing Equipment
Water Quality Meters
Factory Direct Sales IP68 Waterproof Underwater Plants Reef Tanks Full Spectrum Light Quantum Par Meter ppfd
$78.99-95.90
Min. Order: 1 piece
Optical Fiber Identifier Fault Locator 800~1700nm Wavelength Network Testing InGaAs Probe Lightweight Colored Screen Display
$60.20-66.89
Min. Order: 5 pieces
Sound Level Meter Datalogger Noise Tester 43,000 Record Capacity Visual Alarm PC Link Color Screen for Home School Noise Monitor
$22.89-25.83
Min. Order: 5 pieces
Grain Moisture Meter Water Content Analyzer with 11.81" Metal Probe for 14 Grains Wheat Corn Rice Peanut Soybean
$10.11-12.16
Min. Order: 5 pieces
10X Magnification Loupe 6 LED & UV Light Triplet 22mm Optic Lens Rechargeable Jewelry Tool for Collectors Gemologists Jewelers
$9.87-11.87
Min. Order: 5 pieces
30X Jeweler Loupe 6 LED & UV Light 22mm Optic Lens Rechargeable Magnifier for Collectors Gemologists Jewelers Relic Enthusiasts
$10.56-12.70
Min. Order: 5 pieces
Portable Design CO2 Carbon Dioxide Monitor Digital Display w/ Dual Beam NDIR Technology, Color Indicator & Chart Display
$42.90-50.90
Min. Order: 10 pieces
Digital Air Quality Detector 400 to 5000PPM NDIR Sensor Temperature Humidity Carbon Dioxide Monitor for Home Office Classroom
$18.90-21.90
Min. Order: 5 pieces
Carbon Dioxide Monitor with 4.5M Day Night NDIR Sensor, CO2 Controller, Adjusts CO2 for Grow Tents, Grow Rooms, Greenhouses
$70.20-75.60
$78.00-84.00
Min. Order: 1 set
Digital Thermo-hygrometer USB Datalogger PDF Excel Report for Temperature Humidity Barometric Pressure
$38.90-43.90
Min. Order: 30 pieces
Professional Digital Thermo-hygrometer Data Logger PDF Excel Report USB Datalogger for Temperature Humidity Barometric Pressure
$43.73-48.58
Min. Order: 5 pieces
Dual Output with 15ft Remote NDIR Sensor Human Plant Mode Air Quality Detector CO2 Monitor Controller for Greenhouse Mushroom
$92.90-107.90
Min. Order: 1 piece
High Accuracy Digital Micrometer 0.75 to 400mm Micro-computer LSI Gauge Ultrasonic Thickness Meter Steel Cast Iron Aluminum
$168.67-181.82
Min. Order: 5 pieces
Digital Tint Meter Window Tint Tool ATC Measuring VL Visible Light UV IR Transmittance Rejection Of Solar Film Stick-film Glass
$62.28-69.20
Min. Order: 5 pieces
Shore D Hardness Meter Tester Automotive Thickness Gauge 0~100HD Range Rubber Plastics High Quality LCD Self Calibrated
$16.64-18.78
Min. Order: 5 pieces
Mitech MH600 Portable Leeb Hardness Meter 6 Impact Devices IP65 Metal 170~960HLD Chinese-English Metallic with Carrying Case
$759.30-898.00
Min. Order: 1 piece
Automotive Noise Vibration Finder Electronic Stethoscope Battery Powered High Sensitivity Long Short Probe 100Hz~10kHz Range
$31.63-35.70
Min. Order: 1 piece
Wireless Window Tint Meter 0-100% Infrared Light Transmittance Transmission Measuring Gauge Tester Transparency for Car Plastics
$130.12-140.26
Min. Order: 1 piece
OEM Wholesale BNC Connector Replaceable with 200cm Long Cable 50 Ohm Connection PH Electrode for Aquarium Pool Spa
$3.90-4.90
Min. Order: 200 pieces
Low Price Wholesale Pentype Water Analysis Tester Backlight Factory Calibrated EC Conductivity Meter for Pool Lab Aquarium
$7.00-8.30
Min. Order: 40 pieces
Cheap Wholesale Redox Temperature Tester 2 in 1 Pentype Water Analysis IP65 Waterproof Level ORP Meter for Spa Pools Hydroponics
$11.90-22.00
Min. Order: 20 sets
Optional ORP electrode for M0199720
$25.32-28.57
Min. Order: 5 pieces
New Innovation BNC Connector 200cm Long Cable PH Electrode for PH Meter Monitor Controller
$4.81-5.79
Min. Order: 5 pieces
2025 New Customization Digital Pentype Water Quality Tester 14.0 pH Range Three Points Calibration PH Meter Aquarium Pools Spa
$6.27-6.28
Min. Order: 100 pieces
Top picks
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Greenhouse CO2 Controller w/ 4.5 Meters Remote CO2 Sensor Auto Detect Day Night Function Perfect for Grow Rooms, Home, Offices
$93.90-108.90
Min. Order: 1 set
145 sold
Digital CO2 IAQ Monitor Controller 45M Cable NDIR Sensing Probe w/ Relay Function Green House Home, Office, Factory
$93.90-108.90
Min. Order: 1 piece
2 sold
Handheld Par Meter PPFD Tester Up to 3999umol/(m2s) Measurement For for Green House and Led Grow Lights (OEM Packaging Available
$68.26-77.31
$75.85-85.90
Min. Order: 1 set
6 recent viewed
Digital PAR Meter Full-Spectrum Quantum PPFD Tester for Plant Photosynthetic Activity Measurement(OEM Packaging Available)
$52.05-57.82
$57.83-64.25
Min. Order: 5 pieces
4 sold
Thermocouple Thermometer K/J/ T Datalogger 4-Channel Display With Real Time Data Logging Visible Alarm & ADJ Compensation
$37.49-41.65
Min. Order: 5 pieces
20 sold
Digital pH Controller Dual Relay Output Temperature Compensation Adjustable pH 4.5-8.5 Ideal Aquariums Hydroponics Indoor Plant
$157.91-175.30
Min. Order: 1 piece
High Accuracy Measuring 30dB-130dB with Data Record Function Sound Level Meter with Backlit Display Compact Professional
$24.05-27.14
Min. Order: 5 pieces
MAN-45 Professional Digital Manometer +/-13.78kPa +/-2PSI Suitable for 1-1 pipes,Ventilation,Air Condition System 11 units
$20.61-23.26
Min. Order: 1 piece
1 sold
Digital Carbon Dioxide Temperature Humidity CO2 Monitor WB DP Tester Handheld CO2 Meter (OEM Packaging Service Available)
$93.50-103.90
Min. Order: 1 set
7 sold
Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2" and 1" inch Microphone Portable w/ Backlight Calibration Tool
$78.05-86.49
Min. Order: 1 piece
6 sold