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< Test Equipment & Tools < Measurement & Analysis Instruments Gas detection equipment(44) Other Instruments(14) Other Nature Element Measurements(12) Digital Multimeters & Oscilloscopes(5) Temperature & Humidity Measurements(4) Water quality analysis equipment(4) Soil analysis equipment(4) Electrical Measuring Tools(1) Voltage & Current Testers(1) Battery Testers(1) Metal Detectors(1)

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CN(91)

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20.01 ~ 50.00(91)

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35%OFF

Smoke and Carbon Monoxide Detector Combo with Sound Warning and LCD Display Battery Powered CO Smoke Alarm Detector for Kitchen Bathroom Bedroom Coal Stove 3 Packs - 2 AA Battery Not Included

US$42.99
US$65.99

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(277)

SKU:H47622W-2
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34%OFF

2-in-1 WiFi CO & Smoke Detector Intelligent Alarm Sensor for House Bedroom Living Room Factory Hotel

US$25.99
US$38.99

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(381)

SKU:E23606
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39%OFF

13 in 1 Tuya WIFI Intelligent Air Quality Monitor Indoor CO2 Detector

US$30.99
US$49.99

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(359)

SKU:LME00037B
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30%OFF

Tuya WiFi Intelligent Air Housekeeper 6-in-1 Air Quality Monitor PM2.5/Formaldehyde/TVOC/CO2/Temperature/Humidity Detector for Home Office

US$33.99
US$48.49

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(145)

SKU:E20649
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HABOTEST HT633 Wood Moisture Meter Pin-Type Digital Moisture Detector Ambient Temperature

US$32.99

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(502)

SKU:E22247
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29%OFF

2CO16TB 6 In 1 Multifunctional Air Quality Monitor, Portable Formaldehyde Detector Professional Air

US$35.99
US$49.99

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(275)

SKU:E25034W
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32%OFF

Air Quality Monitor CO2 Detector 3 in 1 Accurate Tester for CO2 Temperature Humidity NDIR Sensor Carbon Dioxide Meter Concentration Tester with Alarm

US$39.99
US$58.16

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(159)

SKU:E19977
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38%OFF

Smoke and Carbon Monoxide Alarm LCD Display CO Detector Smoke Alarm Voice Alert Combination Smoke and CO Alarm Battery Powered

US$20.49
US$32.99

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(144)

SKU:E22028
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Tuya Zigbee Wireless Soil Moisture Meter Intelligent Temperature Humidity Tester

US$42.99

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(1)
(573)

SKU:E23191
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57%OFF

Environmental Temperature Humidity Detection ℃/℉ Units Conversion Household Soft Wood Hard Wood Drywall Masonry Moisture Detector

US$21.99
US$49.99

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(198)

SKU:E18371
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5-in-1 Indoor Air Quality Monitor Portable Detector Accurate CO2 TVOC HCHO Temperature & Humidity Air Quality Tester for Home Office School Hotel Car

US$29.99

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(211)

SKU:E26373B
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37%OFF

Handheld Geiger Counter Nuclear Radiation Detector X Y β-Ray Detecting Tool with Sound Light Alarm Cumulative/Instantaneous/Average Dose Rate Measuring

US$40.99
US$64.99

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(533)

SKU:E22635
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33%OFF

Portable Nuclear Radiation Detector Handheld Geiger Counter 0.96inch TFT Display X-rays γ-rays β

US$33.99
US$49.99

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(381)

SKU:E25946B
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Tester Handheld Sound Detector Decibel Monitor 30-130dB Acoustic Measurement Instrument

US$28.69

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(161)

SKU:E15587
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33%OFF

Tuya WiFi15in1 Air Quality Detector Household Portable AQI PM0.3 PM1.0 PM2.5 PM10 CO CO2 TVOC HCHO

US$48.99
US$72.99

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(357)

SKU:E25932-B
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31%OFF

Smoke Detector and Carbon Monoxide Detector 2 Packs 2 in 1 CO and Smoke Detectors Battery Powered

US$26.99
US$38.99

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(272)

SKU:H47623W-1
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34%OFF

Gas Leak Detector Portable Propane and Natural Gas Leak Detector with LCD Color Display 3 in 1

US$25.99
US$38.99

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(259)

SKU:E25361
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22%OFF

9 in 1 Air Quality Monitor CO2 Detector CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature Humidity Detection

US$35.99
US$45.99

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(543)

SKU:E23638W
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SM852B 3-Phase Rotation Tester Digital Phase Indicator Detector LED Buzzer Phase Sequence Meter

US$24.93

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(183)

SKU:E14331
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28%OFF

Tuya WiFi CO Detector Portable Carbon Monoxide Tester Household Air Quality Tester

US$25.99
US$35.99

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(436)

SKU:E25676-W
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29%OFF

Portable Watch Repairing Tool Quartz Watch Detector Compact Button Battery Checker Quartz Impulse Tester

US$23.68
US$32.99

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(306)

SKU:E26101
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12%OFF

Tuya WiFi CO Combustible Gases Leak Detector Portable Carbon Monoxide Gases Leakage Tester Multifunctional Gases Concentration Tester

US$29.99
US$33.99

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(439)

SKU:E25788-W
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43%OFF

Noise Measuring Instrument Digital Decibel Sound Meter Temperature Meter Humidity Meter 3-in-1 Detector Indoor Wall Mounted Large Screen Tester

US$43.99
US$75.99

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(418)

SKU:E22127
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46%OFF

Handheld Combustible Gases Leak Detector Natural Gases Leakage Analyzer Tester Portable Gases Leak Location Determine Meter with Sound and Light Alarm

US$21.99
US$39.99

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(470)

SKU:E22885-1
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36%OFF

YY-1030 Digital Display Baby Food PH Meter Dough Alkalimeter Cheese Cosmetics PH Detector Soil Matrix PH Meter

US$44.99
US$69.99

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(317)

SKU:E24682
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18%OFF

Electrochemical Formaldehyde Sensor Air Quality Detector HCHO TVOC CO2 Tester High Precise Temperature Humidity Test Meter with Voice Alarm Function

US$23.99
US$28.99

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(345)

SKU:E26039P
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28%OFF

5 in 1 Water Quality Tester Digital Meter Water Quality Analyzer Detector PH/ TDS/ EC/ Temperature/ Salinity Testing IP67 Water Resistance Backlight Display

US$38.19
US$52.99

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(180)

SKU:E20581
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Professional 3 in 1 pH/ORP/TEMP Meter Water Detector Multi-parameter Digital LCD Tri-Meter Multi

US$48.99

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(253)

SKU:E5102
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31%OFF

Household 1.9inch 240*280 Resolution Color Display Air Quality Detector High Sensitive

US$20.99
US$29.99

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(452)

SKU:E22982B
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38%OFF

SMART SENSOR Handheld Combustible Gases Leak Detector Natural Gases Leakage Tester Portable

US$28.88
US$45.99

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(330)

SKU:E24350
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37%OFF

Screen AC DC Voltage AC Current Detector with LED Flashlight Multifunction Voltage Meter Capacitance Resistance Frequency Continuity Testing with Alarm Buzzer

US$29.99
US$46.97

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(137)

SKU:E19993
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