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3-in-1 Soil Moisture Sensor and pH Meter ST-10 for Horticultural Soil Testing

$1.25-1.50 Min. Order: 1 piece

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WQ700P Handheld pH Tester with ATC 0.01 pH Precision for Aquarium Hydroponic Wastewater and Laboratory Water Analysis

$100 Min. Order: 1 piece

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Portable Alcohol Tester with Fuel Cell Sensor 0.05% Accuracy Auto Power Off CE Certified

$20-22 Min. Order: 1 piece

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Non-Contact Induction Test Pencil 90-1000V AC Voltage Detector Pen with LED

$0.55-0.65 Min. Order: 10 sets

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AC10 Pen-Type Non-Contact AC Voltage Tester and Detector

$3.19-3.99 Min. Order: 2 pieces

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Analog Sensor Tester WD-1 4-Terminal Automatic and Manual Detection NPN PNP Mounting Testing for Light Curtain Functions

$134-145.50 Min. Order: 1 piece

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Electrochemical 0-20 ppm CO NOX Nitrogen Oxide Gas Sensor Detector Tester Meter

$72-516 Min. Order: 1 piece

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E6000 Portable 6-in-1 Gas Detector for Underground Mining IP67 Air Tester CO CO2 VOC H2O O2 CH4

$550-599 Min. Order: 2 pieces

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3-in-1 Soil Meter Soil Moisture and Light Sensor Digital Soil pH Tester for Garden and Farming

$1.33-1.35 Min. Order: 1 piece

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BT30 Fuel Cell Sensor Alcohol Tester Breathalyzer Alcohol Detector 5-Second Response Black

$27.11-34 Min. Order: 1 piece

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H3 Fuel Cell Sensor Alcohol Tester Handheld BAC Detector 300mAh Battery 2000 Records Data Export

$22.80-24.20 Min. Order: 2 pieces

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Fixed Acoustic Sensor Ultrasonic Leak Detector ACOUSEN 400 Industrial Predictive Maintenance IP67 Remote Monitoring

$375-420 Min. Order: 10 sets

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3.5 TFT Screen TVOC Gas Detector CO2 Monitor with PM Sensor Indoor Air Tester with Trend Chart Display for Home Office Nursery

$68-70 Min. Order: 1 piece

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WiFi NDIR CO2 Indoor Air Quality Detector with Temperature Humidity and 9999 ppm Alarm

$38.80-42 Min. Order: 10 pieces

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ST1393 Handheld EMF Meter Electromagnetic Field Radiation Tester 1 V/m 0.01T 0.01mG

$14.90-16.50 Min. Order: 2 pieces

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Semiconductor Sensor Digital Alcohol Breathalyzer

$17.55-20 Min. Order: 1 set

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7-in-1 Soil Tester Probe for Moisture pH EC Temperature NPK with USB Reading

$43.65-45.94 Min. Order: 1 piece

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Industrial Online pH ORP Controller with Sensor Electrode Probe

$73-100 Min. Order: 1 piece

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Factory Direct 4-in-1 Digital pH TDS Temperature Water Quality Tester

$9.29-10.29 Min. Order: 1 piece

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Formaldehyde Temperature Humidity PM2.5 PM10 PM1.0 TVOC Air Quality Monitor

$31.11-39.61 Min. Order: 1 piece

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Portable Formaldehyde PM2.5 Gas Detector Air Quality Monitor

$53.60-60 Min. Order: 1 piece

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Portable Fast Response TBM Gas Detector Meter Mercaptane Sensor Analyzer Tester 50mg m3 100ppm

$1,000 Min. Order: 1 piece

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PTH 9A Infrared Sensor CO2 Ppm Meter Carbon Dioxide air Detector Monitor Tester Analyzer Gas Analyzer Air Quality Detector

$32.80-38.80 Min. Order: 1 piece

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SMART SENSOR AR8500 Portable Ammonia Gas Detector Nh3 Gas Tester for Farming Animal Husbandry

$129-145 Min. Order: 1 piece