Welcome Doorbell PIR Motion Sensor Activated Voice Reminder Recordable Entr BTLE
$15.24
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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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2-Pack, Dusk to Dawn/Day Night Sensor, Photoelectric Switch, Photo Cell Sensor,
$32.99
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Qolsys QS1431-840 IQ Wireless S-Line Encrypted Glass Break Sensor
$103.30
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Solar Motion Sensor Alarm 4 Modes 129dB With Red Blue Strobe Lights For Outdoor
$26.99
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Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch,
$307.04
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5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching j
$11.99
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3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light
$10.99
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DIMANGO Security Alarm Wireless Motion Detector HS4340D NEW Unopened
$25.00
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Solar Driveway Alarm Wireless 1800ft Range, Outdoor Motion Detector Weatherproof
$45.99
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2 Pack Wireless Motion Detector Alarm, PIR Sensor for Pets & Intruders, Indoor S
$79.99
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Steering Angle Sensor Suitable for VW Polo 2002–2005 Skoda Fabia 2000–2008
$36.13
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Solar Outdoor Motion Sensor Alarm with Dog Barking Gunshot Sound, Support Record
$58.99
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Solar Outdoor Motion Sensor Alarm - Dog Barking & Gunshot Sound, Support Recordi
$51.99
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Wired Infrared Beam Detector IP65 100m Outdoor Perimeter Security Alarm System
$80.05
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Solar Outdoor Motion Sensor Alarm with Dog Barking Gunshot Sound, Support Record
$58.99
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LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Swit...
$30.51
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SALE 2pcs PIR Motion Sensor Switch Wall Light Switch For Power Consumption: <0.5W
$11.48$12.21
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SALE DC 12V-48V Dusk To Dawn Photocell Light Switch 8-50V Light Sensor Control Switch
$8.06$8.57
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SALE High Sensibility Microwave Body Induction Module Radar Induction Switch Sensor
$6.48$6.89
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SALE IR Infrared Body Motion Sensor Automatic Auto Light Lamp Control Switch AC220V
$6.38$6.78
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Automatic Water Leak Detector with Sensors and Shut-off Valve
$77.83
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SALE Type-C Charging Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$17.40$18.51
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SALE 5V-24V Automatic PIR Body infrared LED Strips Light Motion Sensor Switch
$6.15$6.54
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SALE Body Infrared PIR Motion Sensor Switch For LED Light Strip Automatic DC 12V E
$7.73$8.22
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SALE Waterproof LED Solar Alarm Warning Light Sensor Lamp Alert Remote Control M
$12.56$13.37
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SALE Zigbee PIR Motion Sensor 120° Wireless Passive Infrared Detector Home Security a
$19.34$20.57
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SALE Mighty Mule Wireless Driveway Alarm System - FM231
$33.98$39.98
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$183.85
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New AC180-240V 50/60Hz Auto On/Off Light Voice Sound Sensor Switch Time Delay
$3.08
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SALE Alarm System PIR Motion Detector Sensor 433 MHz Detect Distance 23M & 1 Barrier
$41.66$46.29
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Multifunctional Smart Detector Portable Camera Detector GPS Locator Detecto SUBF
$60.55
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Automatic Sliding Door Opener Safety Beam Sensor Infrared Anti-Clip Device b
$23.66
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SimpliSafe Motion Sensor Compatible with Gen 2 Security System - Brand New
$19.95
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SimpliSafe Door Window Magnetic Entry Sensor ES3 (Gen 3) 4-Pack - Brand New
$38.00
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SALE 315mhz Infrared Motion Sensor Home Garage Alert Security System
$17.88$20.79
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Brand New SimpliSafe Home Security Water Sensor WT3 Flood Sensor
$19.95
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Elegant Maestro Indoor Motion Sensor Switch - Effortless Lighting Automation
$67.99
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ABS 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch z
$13.89
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X2 Motion Light Sensors Open Box Used But Good.
$25.00
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Ademco Resideo SiXSHOCK2A Wireless Shock Door Window Sensor
$28.00
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ALULA Re611p Indoor Motion Sensor with Pet Connect+ “Pet-Immune”
$39.99
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Smart Water Leak Detector Kit - Sensor & Hub, 90dB Alarm, App Alerts, Alexa/Goog
$85.99
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3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light
$10.88
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1Pc USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip aa
$11.87
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New Infrared Motion Sensor Home Garage Alert Security System DIY Your Home
$20.38
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SALE Automatic Water Leak Detector with Sensors and Shut-off Valve
$78.59$117.89
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2pcs PIR Motion Sensor Switch For Ambient Light: 2LUX~2000LUX (Adjustable)
$12.34
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2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security
$15.24
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