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Inexpensive security Sensors

 prices on 533 models
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Security Sensor Sonoff DW2 RF
Sonoff DW2 RF
Type:opening sensor
Mount:in the door frame / window frame, indoor
Connection:frequency 433–434 MHz
Power supply:batteries
Price from $9.99
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1 store 1 offer
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Security Sensor Sonoff DW2 Wi-Fi
Sonoff DW2 Wi-Fi
Type:opening sensor
Mount:in the door frame / window frame, indoor
Connection:Wi-Fi
Power supply:batteries
Price from $9.99
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1 store 5 offers
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Security Sensor Sonoff SNZB-03P
Sonoff SNZB-03P
Type:motion Sensor
Mount:wall/ceiling, indoor
Connection:Zigbee, Google Home
Coverage angle:360 °, vertically - 110 °
Range:6 m
Power supply:batteries
Price from $12.99
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1 store 2 offers
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Security Sensor Aqara Temperature and Humidity Sensor
Aqara Temperature and Humidity Sensor
Type:temperature sensor, humidity sensor
Mount:wall-mounted, indoor
Connection:Zigbee, Apple HomeKit, Aqara Home
Power supply:batteries
Price from $15.99
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1 store 1 offer
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Security Sensor Shelly SBDW-002C
Shelly SBDW-002C
Type:opening sensor, vibration sensor
Mount:in the door frame / window frame, indoor
Connection:Bluetooth, Apple HomeKit, Google Home, Xiaomi Home (Mi Home), SmartThings
Power supply:batteries
Colour:
Price from $16.39 up to $19.00 
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1 store 2 offers
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Security Sensor Bosch ISC-BPR2-W12
Bosch ISC-BPR2-W12
security
Type:motion Sensor
Mount:wall-mounted, outdoor
Connection:wired
Coverage angle:94 °
Range:12 m
Adjustment:sensitivity
Additionally:animal immunity
Power supply:12В
Price from $18.29
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1 store 1 offer
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Security Sensor Eufy Motion Sensor
Eufy Motion Sensor
Type:motion Sensor
Mount:wall-mounted, indoor
Connection:frequency 868 MHz
Coverage angle:100 °
Range:9 m
Additionally:animal immunity
Power supply:batteries
Price from $24.99 up to $34.00 
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2 stores 2 offers
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Security Sensor WiZ Motion Sensor
WiZ Motion Sensor
Type:light sensor
Mount:wall/ceiling, outdoor
Connection:Wi-Fi
Coverage angle:120 °
Range:3 m
Adjustment:time, illumination
Power supply:batteries
Price from $27.49
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1 store 1 offer
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Security Sensor Eufy Entry Sensor
Eufy Entry Sensor
Type:opening sensor
Mount:in the door frame / window frame, indoor
Connection:frequency 868 MHz
Additionally:alert
Power supply:batteries
Price from $29.99
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1 store 1 offer
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Security Sensor Meross MS600
Meross MS600
Type:light sensor
Mount:table/wall, indoor
Connection:Wi-Fi, Apple HomeKit, Google Home, SmartThings, Matter
Coverage angle:180 °
Range:12 m
Additionally:animal immunity
Power supply:USB-C
Price from $32.99
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1 store 4 offers
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Security Sensor Eve Motion
Eve Motion
Type:light sensor
Mount:wall-mounted, outdoor
Connection:Thread, Apple HomeKit, Google Home, SmartThings, Matter
Coverage angle:120 °
Range:9 m
Adjustment:illumination
Power supply:batteries
Price from $39.75 up to $70.00 
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2 stores 3 offers
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Security Sensor Philips Hue Secure Motion Sensor
Philips Hue Secure Motion Sensor
Type:light sensor
Mount:wall-mounted, indoor
Connection:Zigbee, Apple HomeKit
Adjustment:illumination
Power supply:batteries
Price from $48.99 up to $64.00 
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4 stores 4 offers
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Security Sensor Ubiquiti All-In-One Sensor
Ubiquiti All-In-One Sensor
Type:opening sensor, vibration sensor, temperature sensor, humidity sensor, light sensor
Mount:in the door frame / window frame, indoor
Connection:Bluetooth
Range:5 m
Power supply:batteries
Price from $68.68 up to $213.00 
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2 stores 2 offers
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