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alarm-sensor
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44 Quick view
Aqara Smart Natural Gas Detector Zigbee Gas Leak Alarm Sensor

US$76.95
US$43.67

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(4)

SKU:PAA5028
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34 Quick view
2-in-1 WiFi CO & Smoke Detector Intelligent Alarm Sensor for House Bedroom Living Room Factory Hotel

US$40.55
US$27.03

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(0)

SKU:E23606
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42 Quick view
Door Window Alarm Sensor Wireless Door Sensor Anti-Theft Alarm Compatible With Alarm Host for Smart Home Automation Security Alarm System

US$17.67
US$10.39

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(3)

SKU:S6610-1
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38 Quick view
Tuya Wifi Smoke Detector Fire Protecting Sound Alarm Sensor Cellphone APP Remote Push Alert with Alarm Cancel Function

US$29.73
US$18.71

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(2)

SKU:E23826
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38 Quick view
2Pcs Home Security Wireless Magnetic Sensor Door Window Alarm

US$41.59
US$25.99

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(1)

SKU:HS6926-2
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51 Quick view
Tuya WiFi PIR Motion Sensor Alarm 2.4GHz Wireless Human Body Infrared Detector 120° Wide-Angle Detection

US$21.83
US$10.91

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(3)

SKU:LME00022
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24 Quick view
Multifunctional Wireless Driveway Alarm Waterproof Outdoor Motion Sensor Alarm 1 Receiver 2

US$32.13
US$24.44

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SKU:H45368EU
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Tuya Wifi Natural Gas-Sensor Household Intelligent Combustible Gas-Alarm Detector Gas-Leakage Sensor Compatible with Amazon Alexa Google Assistant

US$41.59

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SKU:E15116
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58 Quick view
Tuya WiFi Solar Powered Wireless Infrared Motion Sensor Detector

US$72.79
US$31.19

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(2)

SKU:S6853
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45 Quick view
Multifunctional Wireless Driveway Alarm IR Motion Sensor Alarm Doorbell 1 Receiver 2 Transmitters for Home Outdoor Use

US$48.48
US$27.03

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(0)

SKU:H44632
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41 Quick view
Wireless WiFi PIR Motion Sensor Infrared Security Alarm with Tuya App Control Smart Home Security System

US$20.79
US$12.47

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SKU:UU0112
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44 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$165.35
US$93.59

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(0)

SKU:E10949EU
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43 Quick view
High-precision Sound and Light Alarm IP54 Waterproof Temperature Humidity Sensor

US$103.99
US$60.31

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SKU:E26390
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21 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$103.99
US$83.19

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(0)

SKU:E26208
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45 Quick view
433MHz Wireless WIFI + 4G Auto-dial Alarm Security System LCD Display Door Sensor PIR Motion Sensor Phone APP Remote Control

US$158.07
US$88.39

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(2)

SKU:PAA5461-EU
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34 Quick view
4in1 Air Quality Meter Household CO2 TVOC Tester Portable Temperature Humidity Detector NDIR Sensor Digital Display with Alarm Function

US$44.71
US$29.62

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(0)

SKU:E25979
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38 Quick view
Protections Alarm System App Remote Control Wireless Door Sensor Compatible with Alexa and Google AssistantTuya ZigBee Intelligent Window Door Gate Sensor Door/Window Opening Closing Detector Home Safety

US$20.79
US$12.99

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(1)

SKU:E25172
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42 Quick view
Zigbee Smart Door Sensor Tuya APP Control Door Open / Closed Detector Magnetic Switch Window Sensor Smart Home Security Alarm

US$24.92
US$14.55

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(2)

SKU:S6195
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31 Quick view
4 Pack Mini Door Window Alarm Home Security TY APP 2.4G WIFI Wireless Magnetic Sensor Anti-Theft Alarm Sound Easy Installation for Home Garage Apartment Door Alarm Security System Low Voltage Alarm

US$44.71
US$31.19

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(0)

SKU:HS7020-4
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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$25.99
US$14.72

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(3)

SKU:E25427
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30 Quick view
Carbon Monoxide Detector Electrochemical Sensor Carbonic Oxide Detector Digital Display Sound and Light Alarm LED Indicator Light Functions

US$28.07
US$19.75

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(0)

SKU:E26258EU
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433MHz Wireless WIFI + GSM Auto-dial Alarm Security System LCD Display Door Sensor PIR Motion Sensor Phone APP Remote Control Compatible with Alexa Google Home Voice Control Smart Home Burglar Security Alarm System

US$99.83

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(2)

SKU:S6055
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32 Quick view
3-in-1 Carbon Monoxide Detector 0-1000PPM Portable Mini Air Quality Monitor with Lanyard Alarm CO Gas Meter Temperature Humidity Sensor Built-in 800mAh Battery for Basement Trip Camp RV Car

US$30.15
US$20.79

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(1)

SKU:E25710
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34 Quick view
Carbon Monoxide Smoke Detector Electrochemical Sensor Smoke Detector Digital Display Sound and Light Alarm LED Indicator Light Functions

US$31.19
US$20.79

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(0)

SKU:E26257
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61 Quick view
Alarm Security System LCD Display Door Sensor PIR Motion Sensor Phone APP Remote Control Compatible with Alexa Voice ControlSmart Home Burglar Security Alarm System Tuya 433MHz Wireless WiFi + GSM + GPRS 3G SMS Auto-dial

US$137.92
US$55.11

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(5)

SKU:S6165
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18 Quick view
Electrochemical Formaldehyde Sensor Air Quality Detector HCHO TVOC CO2 Tester High Precise Temperature Humidity Test Meter with Voice Alarm Function

US$30.15
US$24.95

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(0)

SKU:E26039B
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26 Quick view
Degree PIR Sensor Auto Motion Detection with Flash LEDs Voice Alarm Detachable Rod

US$41.59
US$31.19

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(0)

SKU:H48358
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28 Quick view
Sensor Auto Motion Detection with Flash LEDs Voice Alarm Detachable Rod

US$37.43
US$27.03

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SKU:H48357
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39 Quick view
Electrochemical Sensor Carbon Monoxide Gases Leakage Detector Unit 3-digit LCD Display Sound and Light Alarm LED Indicator Lights with Fault Self-Test Low Battery Reminder Memory Functions

US$21.83
US$13.4

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SKU:E25945
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30 Quick view
Wired Dual-tech Infrared Motion and Microwave Detector Wall Mounted PIR Motion Sensor Pet Immunity for Home Burglar Security Alarm System

US$18.58
US$13.08

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(2)

SKU:S4066
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23 Quick view
Air Quality Monitor CO2 Detector 3 in 1 Accurate Tester for CO2 Temperature Humidity NDIR Sensor Carbon Dioxide Meter Concentration Tester with Alarm

US$53.59
US$41.59

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(0)

SKU:E19977
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36 Quick view
Portable Electrochemical Sensor CO Tester 1.1inch LCD Screen Carbon Monoxide Detector with Sound Lihgt Alarm and Low Battery Reminder Function

US$23.91
US$15.48

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(0)

SKU:E25168B
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Wi-Fi Temperature Humidity Meter Indoor Hygrometer Temperature Sensor Alarm Tuya APP Control 2.9

US$35.35

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(1)

SKU:E22349-1
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38 Quick view
SMART SENSOR Handheld Combustible Gases Leak Detector Natural Gases Leakage Tester Portable Combustible Gases Concentration Analyzer Meter with Temperature Test and Sound Light Alarm Function

US$47.83
US$30.04

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(0)

SKU:E24350
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43 Quick view
Portable Fish Finder with Depth Readout Fish Alarm 200kHz 45 Degrees 0.6-100M Color TN LCD Transducer Cable and Sensor Beam Angle

US$83.19
US$47.83

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(0)

SKU:Y29220
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51 Quick view
433MHz Wireless WIFI+GSM Auto Dial Alarm Security System LCD Display Door Sensor PIR Motion Sensor

US$135.19
US$66.55

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(4)

SKU:S6920
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41 Quick view
Smart Home Alarm System Wireless WiFi Alarm System TY APP Remote Control 8 Piece-kit Door Window Sensor PIR Motion Sensor Remote Control Supports 11 Different Languages for House Apartment Security

US$83.19
US$49.91

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(2)

SKU:HS7049
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SMART SENSOR AP388 Gas Detector Portable Gas Leak Detector LPG Natural Gas Coal Gas Detection Sound & LED Alarm Auto Shut-Down for Home Kitchen

US$25.41

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(0)

SKU:E19061
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38 Quick view
Meter with Alarm Smart Tuya APP NDIR Sensor Portable RS485 Data Logger Indoor Air Quality Detector

US$175.75
US$110.23

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(0)

SKU:H47550W-EU
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62 Quick view
Handheld Digital Oxygen Detector USB Rechargeable Automotive O2 Sensor Tester Monitor LCD Display Adjustable Alarm Auto Power Off Oxygen Meter for Car Tunnel Laboratory and Industry

US$162.23
US$62.39

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(0)

SKU:E12982
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