Qualirey 2 Pack Solar Outdoor Motion Sensor Alarm-Dog Alarm Sound, Yellow
$89.98
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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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Bagood 8" Schoolhouse Light Fixtures Ceiling Black 8 inches, 8 inch-Black
$75.66
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Ring Motion Sensor — Battery-powered outdoor sensor for Ring smart lights, works
$33.99
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Solar Outdoor Motion Sensor Alarm - Dog Barking & Gunshot Sound Green&Red
$41.00
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TREEWELL 2 Pack 240-Degree Replacement Motion Sensor, Adjustable Black
$39.53
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TREEWELL 240-Degree Replacement Motion Sensor, Adjustable LUX(5-300) & White
$26.31
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SensorSwitch Ceiling Motion Sensor, PDT Passive Dual Extended Range, White
$112.93
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ChunHee Solar Outdoor Motion Sensor Alarm with Dog Barking Gunshot Red-2pack
$76.87
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Aqara Zigbee Motion Sensor P1, Smart Detector, Requires AQARA White
$38.06
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EVB Lite Wi-Fi Vibration Sensor up to 1.6 Khz | 3-Axis Accelerometer | Wi-Fi & A
$158.99
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Wi-Fi Vibration & Motion Sensor up to 6.66kHz | 6-Axis IMU (Accelerometer + Gyro
$347.99
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Wireless Driveway Alarm System - 1/2 Mile Range, Weatherproof Motion Sensor Aler
$88.99
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Wireless Driveway Alarm System - 1/2 Mile Range, Weatherproof Motion Sensor Aler
$84.99
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Siren Marine Wired Infrared Motion Sensor, 360° Dual-Tech
$150.94
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4PCS WIRELESS Home Window Door Burglar Security ALARM System Magnetic Sensor
$9.99
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Westek Indoor Motion Activated Light Control MLC162BC White 120V *NEW*
$14.95
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SALE Motion Sensor Light Switch, Occupancy & Vacancy Model
$21.59$26.99
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Acuity NCM ADCX RJB Ceiling Mount Sensor - White
$55.00
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SALE 1/2 Mile Wireless Driveway Alarm - Expandable Weather Resistant Security System
$67.54$84.42
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Plug & Safe Set Of 2 PS8 Home Motion Sensor New
$15.00
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Wireless Motion Controller Kit - No Wiring Mini PIR Switch 12/24VDC RF Wirele...
$28.03
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DSC PGP9934P PowerG+ PIR Motion Detector with Built-In Camera
$56.99
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Single Blue by ADT Door and Window Sensor for Home Security Model SSH1R0
$29.00
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BRAND NEW Single Blue by ADT Door and Window Sensor for HomE Security SSH1R0-29
$29.00
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PHILIPS 12 WIRELESS WINDOW/DOOR ALARM Indoor Home Security Magnetic Sensors
$39.99
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SCHLAGE Scan II- Pir Motion Sensor- WHite
$40.00
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SALE Wireless Dog Barking Alarm Motion Detector
$61.59$76.99
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Interlogix 60-807-95R Wireless Motion Detector
$40.00
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C-Max Network PIR Motion Sensor/Daylight Harvesting Node NN-RTPSW - 1 PIECE
$19.99
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Safety Technology International, Inc. -9621 Motion Detector Damage Stopper St...
$37.45
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Wireless Driveway Alarm, Outdoor Weatherproof Motion Sensor & Detector with 600F
$32.06
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FS01D PIR Motion Sensor Transmitter Wireless Driveway Alarm Sensor ONLY - New
$19.65
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GE LM Micro Door/Window Sensor - White 60-688-95/ NX-454
$30.00
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$89.00
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Inovonics 900MHz Supervised Wireless FA Transmitter - FA210W Door/Window
$49.99
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12-24V 24.125GHz Human Inductive Motion Microwave Radar Motion Tracking Sensor
$19.52
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New 45° Infrared Motion Sensor Home Garage Alert Security System
$19.15
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Smart Thermometer Hygrometer Wi-Fi LCD Temperature Humidity Sensor Home Digital
$19.89
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AC 85-265V Replacement Motion Infrared Sensor Switch For Outdoor 180° Detection
$12.36
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20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft D
$15.24
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3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light F
$10.22
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Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$11.15
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Honeywell Aurora Pet Immune PIR Motion Sensor NOS - FREE SHIPPING
$11.00
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RGBZONE Automatic Mini 5A PIR Infrared Motion Sensor Detector Switch for LED ...
$15.32
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Lot Of NEW X10 Door Window Sensor, Keyfob, Remote, Mini Powerhorn
$50.00
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2 Pack Audible Window/Door Alarms 110 dB New See Pics E47
$11.54
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L5 NEW DSC WS4965 Tri-Zone (3 Zones in 1) Wireless Door Window Contact 433 MHz
$18.00
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Lot Of 2 LEVITON WSWDR-H9W MOTION SENSOR
$24.97
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