PIR Infrared Motion Sensor Detector Auto Switch AC 110V-240V Light Control Part
$5.56
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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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24.125GHz Human Inductive Motion Microwave Radar Motion Tracking Sensor
$17.14
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DC USB Body Infrared PIR Motion Sensor Switch Detector Switch For LED Light
$8.14
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Simple Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$6.10
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1*Microwave Body Induction Module 24GHz CDM324 Radar Induction Switch Sensor
$6.78
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DC4V-12V PIR Motion Detection Sensor Lamp Switch Infrared Human Body Induction
$5.07
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Solar 6LED Flashing Red Light Motion Sensor Alarm Lamp 110db Siren Alert
$18.51
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Home Wireless Driveway Alarm Infrared Motion Sensor Garage Alert Security System
$20.36
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New 10 x RC-33 NC Recessed Door Contact Sensor Alarm Magnet Reed Switch
$9.29
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New 315mhz Infrared Motion Sensor Home Garage Alert Security System
$18.51
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Automatic Infrared PIR Motion Sensor Body Induction Switch Control Repair Part
$10.45
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Siren Marine Wireless Entry Sensor for Siren 3 Series - IP67 Waterproof
$139.09
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Smart Home Compatible Water Leak Detector with 100dB Siren for Immediate Alerts
$17.99
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Wireless Driveway Motion Detector Alarm For Home Security White
$29.57
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STI ED-50 Rex Plus Electronic Watchdog Barking Dog Alarm New In Box
$79.90
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Solar Motion Sensor Alarm Outdoor,Motion Sensor Alarm,13 Sound,Dog Barking&Gu...
$45.53
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Wired Door Contact Sensor NO NC Surface Mount Magnetic Reed Switch Black 3Pieces
$27.14
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Ignition Knock Detonation Sensor Compatible with 9-5 Aura Cobalt Equinox G5 G6 H
$33.16
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Safe Entry Sensors Replacement Adhesive Strips for Simplisafe – Pre-Cut Replacem
$12.29
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2x UltraPro Window/Door Alarm 5-Packs Home Security Alerts New (10 Total)
$35.00
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SALE Hubbell Wall Mount Wireless 2-Relay Control Unit LoadLogic 120/277V 20A WLC402W
$199.49$209.99
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SALE Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip 5-24V
$11.03$11.99
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SALE High Precision Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$19.68$21.39
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SALE AC 85-265V Portable Motion Infrared Sensor Switch For Outdoor 180° Detection
$12.23$13.29
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SALE New Water Leak Alarm Flood Level Overflow Detector Sensor Home Security Alert
$10.29$11.19
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SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen A
$10.11$10.99
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SALE 5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip hh
$11.03$11.99
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SALE 20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft
$15.26$16.59
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light A
$10.11$10.99
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SALE New ABS Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$10.48$11.39
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SALE 10 x RC-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Switch
$23.78$27.98
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Greengate Cooper Dual Tech Low Voltage Occupancy Sensor OAWC-DT-120W NEW
$25.99
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SALE Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip b
$11.26$12.11
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SALE AC 110V 220V PIR Infrared Body Motion Sensor Detector Control Switch Light Lamp
$10.32$11.10
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SALE AC 85-265V Motion Infrared Sensor Switch For Outdoor Use 180° Detection Range
$12.48$13.42
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SALE 20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft B
$15.02$16.69
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DC 5V-24V 3A PIR Motion Sensor Light Switch IR Detector Time Delay for LED Strip
$7.70
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SALE Smart WiFi Temperature Humidity Sensor Meter LCD Hygrometer Thermometer Monitor
$19.52$21.69
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SALE Automatic Water Leak Detector with Sensors and Shut-off Valve
$78.60$125.55
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SALE Automatic Water Leak Detector w/ Sensors & Stut-off Valve Water Leak Detecting
$70.60$85.00
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SALE 5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip aa
$11.26$12.11
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SALE Automatic Water Leak Detector with Sensors and Shut-off Valve
$78.60$125.55
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FIRST ALERT Instant Alarms Set Of 4 Window and Door Security Alarms New
$13.66
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Zircon Leak Alert Electronic Water Detector Alarm Sensor New Sealed
$6.99
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NEW! Swann Driveway Wireless Alert Kit Motion Detection Model SWADS-ALARMK-LW
$55.00
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Uniqu Exceptional MA20 Mini Alarm Motion Detector with Keypad White New In Pack
$19.99
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Wireless Door & Window Alarm Intermatic Brand New
$12.99
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⚡BRAND NEW⚡ROOST RDW-320 WIRELESS ENTRY SENSOR DOOR WINDOW FOR SECURITY360 HOME⚡
$25.10
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