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Environmental Measurement Instruments
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35 Quick view
FanJu FJ3373 Multifunction Digital Weather Station LCD Alarm Clock

US$41.09
US$26.87

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(8)

SKU:E9338B
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Wireless Digital Refrigerator Thermometer Audible Alarm Indoor Outdoor Thermometer

US$33.92

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(0)

SKU:H34989-1
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LCD Electronic Temperature Humidity Meter Electronic High Precisions Temperature Hygrometer Alarm Clock

US$29.11

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(1)

SKU:E17789
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37 Quick view
Handheld Combustible Gases Leak Detector Natural Gases Concentration Analyzer with Sound Light Alarm Function

US$25.75
US$16.23

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SKU:E24081B
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38 Quick view
Tuya WiFi Decibel Meter 4 in1 Temperature Humidity Decibel Test Alarm Clock

US$95.19
US$59.35

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SKU:E23818
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Wifi Gas Leak Detector Fire Alarm Wall Mounted Design APP Control Smart Wi-Fi Natura Gas/ LPG Tester with LCD Display (USB Type)

US$39.19

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(1)

SKU:E18856-1
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DS3231 Digital LED Alarm Clock Kit Large Font 6-digit Display Electronic Clock Semi-finished Music Spectrum Display Clock Module Multifunctional DIY Clock Featuring Time / Temperature / Date / Week / Alarm / Countdown / Voice Wake-Up / Touch-Operation

US$88.47

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(4)

SKU:E14529-1
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31 Quick view
PM10 Humidity and Temperature Time Date Alarm Timer and Stopwatch Timer with Alarm for Home Offices School Hotel

US$54.87
US$38.07

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SKU:E25112B
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32 Quick view
/PM10/Temperature/Humidity/Time/Date/Alarm Support Remote APP Control Alarm Function for Home Office (with 3 Subunits)

US$111.99
US$77.15

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(1)

SKU:E26084-3
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Geevorks LCD Digital Indoor Thermometer Hygrometer Room ℃/℉ Temperature Humidity Gauge Meter Alarm Clock Thermo-Hygrometer with Max Min Value Display

US$12.31

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(0)

SKU:E21241
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34 Quick view
Handheld Carbon Monoxide Detector Portable Carbonic Oxide Concentration Testing Meter with Temperature Test and Sound Light Alarm Function

US$44.79
US$29.77

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(0)

SKU:E23760
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44 Quick view
Tuya Wifi Independent Photoelectric Sensor Smoke Detector Fire Protecting Sound Light Fire Alarm with Cellphone APP Remote Push Alert Function

US$27.99
US$15.85

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(3)

SKU:E25427
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DS3231 High Accuracy DIY Digital Dot Matrix LED Alarm Clock Kit with Transparent Case Temperature Date Time Display

US$26.53

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(5)

SKU:E3937BL
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35 Quick view
Electrochemical Formaldehyde Sensor Air Quality Detector HCHO TVOC CO2 Tester High Precise Temperature Humidity Test Meter with Voice Alarm Function

US$32.47
US$21.27

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(0)

SKU:E26039B
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LED Mirror Clock Mini Digital Alarm Clock Table Clock with Snooze Function 3 Adjustable Brightness Auto-Adapt Backlight

US$32.47

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SKU:E17967W
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39 Quick view
Carbon Monoxide Detector Electrochemical Sensor Carbonic Oxide Detector Digital Display Sound and Light Alarm LED Indicator Light Functions

US$30.23
US$18.57

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(0)

SKU:E26258EU
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34 Quick view
Carbon Monoxide Detector Battery-Operated Digital CO Alarm with Backlit LCD Display and LED Indicators for Home Kitchen Bathroom Warehouse

US$27.87
US$18.46

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SKU:E26190
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Temperature Humidity Alarm Incubator for Chicken Ducks Birds Eggs

US$111.99

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(1)

SKU:H46342AU
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45 Quick view
Combustible Gases Detection Tool 4 Concentration Indicators with Sound and Light Alarm

US$32.47
US$17.91

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(0)

SKU:E22598
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34 Quick view
Concentration Analyzer with Digital Display Multifunctional Meter Leakage Tools Sound Alarm

US$33.59
US$22.39

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SKU:E26019
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39 Quick view
Light Alarm LED Indicator Lights with Fault Self-Test Low Battery Reminder Memory Functions

US$23.51
US$14.43

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(0)

SKU:E25945
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41 Quick view
Four Units Switchable with Sound Light Alarm Function (1.5-30Nm, ATE-30)

US$99.67
US$59.23

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(0)

SKU:E25200-1
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Geiger Counter Sound Light Alarm Instantaneous Dose Rate Cumulative Average Dose Rate

US$77.27

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(3)

SKU:E22393
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37 Quick view
Forecast Station Clock Atomic Alarm Clock with Colorful Touchscreen Adjustable Backlight

US$33.59
US$21.27

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SKU:H45927
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40 Quick view
Gas Leak Detector WiFi Home Gas Alarm Tuya APP Monitor Mini Gas Detector for Home Kitchen Bathrooms

US$38.07
US$23.05

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(1)

SKU:HS6968
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31 Quick view
Time Display Comfort Indicator Support Alarm Clock Function and ℃/℉ Switching for Home Office Baby Room Greenhouse

US$14.55
US$10.07

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(0)

SKU:E26275-1
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50 Quick view
SMART SENSOR ST8990 Multi Gas Monitor Rechargeable 4 in 1 O₂ LEL CO H₂S Gas Detector Tester Sensor with Backlight Alarm Function LCD Display

US$178.07
US$89.59

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(0)

SKU:E10949EU
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38 Quick view
Combustible Gases Concentration Analyzer Meter with Temperature Test and Sound Light Alarm Function

US$51.51
US$32.35

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(0)

SKU:E24350
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39 Quick view
HABOTEST HT609 Gas Leak Detector Combustible Gas Detector with LCD Display Audible and Visual Alarm

US$40.31
US$24.63

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(2)

SKU:E22246
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34 Quick view
14 in 1 Tuya WIFI Intelligent Air Quality Monitor Indoor CO2 Detector Support Remote APP Control Alarm Function for Home Office

US$62.71
US$41.43

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(1)

SKU:LME00003W
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28 Quick view
Monitor with Time/Calendar/Alarm Display Support Remote APP Control for Home Office

US$85.11
US$61.47

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(0)

SKU:E26196-5
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Device Multifunctional LED Alarm Clock with Calendar for Home Office Dormitory

US$32.47

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(5)

SKU:E12172S
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38 Quick view
Concentration Analyzer Meter with Temperature Test and Sound Light Alarm Function

US$28.54
US$17.91

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(1)

SKU:E24538
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34 Quick view
with Low Battery Alarm Function Needs to Be Required with Gateways

US$26.87
US$17.79

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SKU:E26269
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35 Quick view
Wireless Ultrasonic Water Level Monitor Tank Liquid Level High/Low Alarm Solar Powered Water Level Sensor Water Level Indicator Gauge IP65 Waterproof

US$111.99
US$73.91

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SKU:E26208
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39 Quick view
13 in 1 Tuya WIFI Intelligent Air Quality Monitor Indoor CO2 Detector

US$55.99
US$34.71

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SKU:LME00037B
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Digital Alarm Clock for Bedroom Electronic Clock with Wireless Charging for Phone Headset

US$48.55

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(1)

SKU:OS5964B
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37 Quick view
Handheld Digital Oxygen Detector Air Oxygen Concentration Alarm Value USB Rechargeable Portable O

US$141.11
US$89.59

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(0)

SKU:E25242GY
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37 Quick view
Field Magnetics Field Radiation Test Data Hold Sound Light Alarm Magnetics Three Color Indicator

US$40.31
US$25.75

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(2)

SKU:E20282
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33 Quick view
Tester TFT Display Multifunctional Time Temperature and Humidity Test Meter Versatile Time Clock Timer with Alarm Function

US$81.75
US$54.87

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(0)

SKU:E25932-B
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