Fresnel Lenses Infrared Human Body Sensing Switch cabinet Sensing
$6.66
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Sensors & Motion Detectors
Motion, door/window and glass-break sensors are the trip-wires of a security system. Check what hub or panel they pair with (many are brand-specific and won't mix), wired vs wireless, and battery life for wireless units. For motion sensors, pet-immune designs avoid false alarms. Buying spare or used sensors is fine — just confirm the protocol and that they're compatible with your system.
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New 10 x RC-33 NC Recessed Door Contact Sensor Alarm Magnet Reed Switch
$9.13
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Outdoor Solar Alarm With Motion Sensor 129dB 4 Working Modes Dog Barking Sound
$26.05
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AC 85-265V High Quality Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.43
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AC220V 200W Human Body IR Infrared Sensor Switch Light Auto Control Accessory
$6.59
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Auto On/Off Sensor Switch Motion Infrared PIR Wall Light Lamp For Home Hotel
$10.99
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Body Infrared PIR Motion Sensor Switch For LED Light Strip Automatic DC 12V C
$7.99
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NEW Security Vibration Window & Door Alarm Siren Bunker Hill 2 Pack SEALED
$9.49
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1pc Driveway Alarm Infrared Motion Sensor Home Garage Alert Security System
$18.36
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USB Sensor Switch Infrared Human Body Sensing Switch cabinet Sensing
$6.87
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Interior Wireless Replacement/Additional Driveway Alarm Base Station for Outdoo
$75.99
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SALE Solar Alarm LED Strobe Light Infrared Motion Sensor Detector for Home Farm Yard
$38.69$42.99
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AKAARI Flush Mount Ceiling Light - 2 Pack 36W 12 Inch, Black
$49.38
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LUMLLSAJI 4 Pack LED Flush Mount Ceiling Light, 24W 12Inch-4 Pack, White
$49.38
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Brightever 4Pack LED Flush Mount Ceiling Light 12 Inch-4 Packs, 5CCT-White
$56.43
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Tuya WiFi Zigbee PIR Motion Sensor
$14.99
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SALE 202A automatic reset switch wardrobe cabinet light switch door control swit XN
$4.64$4.88
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Solar Driveway Alarm System-1/4 Mile Long Transmission Range-Solar Powered No Ne
$79.99
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Solar Wireless Driveway Alarm System (1/2 Mile Range, 1 Receiver & 2 Solar Senso
$69.99
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Solar Driveway Alarm System-1/4 Mile Long Transmission Range-Solar Powered No Ne
$49.96
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New NOS FBI Honeywell ZR911 Passive Infrared Motion Detector Sensor 12VDC 12V DC
$13.95
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ZigBee PIR Motion Sensor 120° Wireless Infrared Detector Security Burglar Alarm
$20.61
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Solar Wireless Driveway Alarm System 1/2 Mile Range IP65 Weatherproof Motion
$107.99
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SALE LoRa Smart Door Sensors: 5yr Battery, Door Left-Open Reminders, Home Assistant
$125.09$138.99
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Leak Sensor Probe 2-Pack (Sense Hub Required, Accessory to Home Monitoring Syst
$28.25
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Water Leak Detector WiFi Alarm Float Sensor Battery
$154.00
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WiFi Water Leak Detector Battery Float Sensor
$154.00
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WiFi Water Level Monitor Alarm Float Sensor Battery
$154.00
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TopGreener Occupancy Sensor PIR Wall Switch TDOS5-j-W White New E25
$18.48
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Water Level Alarm WiFi Monitor Float Sensor 10ft
$154.00
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Driveway Alarm- 1/2 Mile Long Range Wireless Driveway Alarm Outdoor Weather R...
$79.99
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Ring Alarm Smoke & CO Listener White Wireless Security Sensor Used
$19.99
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Water Level Alarm WiFi Monitor Float Sensor 10ft
$154.00
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Automatic Water Leak Detector with Sensors and Shut-off Valve
$78.60
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WiFi Water Level Monitor Alarm Float Sensor Battery
$154.00
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SWANN GARAGE PARKING SENSOR ULTRASONIC WIRELESS ALERT
$30.00
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AC 85-265V Portable Motion Infrared Sensor Switch For Outdoor 180° Detection
$12.36
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New Water Leak Alarm Flood Level Overflow Detector Sensor Home Security Alert
$10.29
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Cooper OAC-DT-1000 Ceiling Occupancy Sensor Dual Technology, Class 2
$39.90
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Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip 5-24V
$11.03
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Neutral Wire Required Motion Sensor Switch - Adjustability for Indoor Lighting
$24.99
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Emotion Pro Smart Motion Sensor with 24GHz Radar & Home Assistant Integration
$46.99
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SimpliSafe Panic Button - PB3 - New In Box
$14.95
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2pcs PIR Motion Sensor Switch Wall Light Switch For 180°Detection Angle
$13.94
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High Precision Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$19.68
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WiFi Water Leak Detector Battery Float Sensor
$154.00
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WiFi Water Level Monitor Alarm Float Sensor Battery
$154.00
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3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light A
$10.11
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