AC100-240V Motion Sensor Switch PIR Infrared Auto On/Off for LED Lights White cc
$15.99
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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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Lot of 3 Wired Dual-Tech PIR + Microwave Motion Detectors Motion Sensor Security
$29.00
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WattStopper RS-150BA-N-W PIR Vacancy Sensor Night Light Amber LED White 120V
$20.00
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SALE 10 Sets Pack of Wired Surface Mounted Alarm Magnetic Contacts Door Window Reed
$21.42$22.99
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Centralite Water Leak Sensor - Monitors Your Whole Home for Leaks - Detects
$13.99
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ADT Blue Door Window Sensor (SSH1R0-29) - 4 Pack
$48.00
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Aqara Water Leak Sensor 3 Pack Zigbee Wireless Leak Detector Alarm Flood Sensor
$95.98
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ADT Blue Motion Sensor Model SSM1R0-29 *Lot Of 2 " New
$37.00
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Defiant 270-degree black replacement motion sensor
$14.70
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SALE Reliable Weatherproof Driveway Alert System
$110.99$184.99
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Reliable Outdoor Motion Detector - Large Property Coverage
$109.99
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Weatherproof Driveway Security System
$83.99
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20 Sets Wired Magnetic Door Window Alarm Contact Sensor - Security Reed Switch
$49.99
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20 Sets Magnetic Window Door Sensor Contacts - Surface-Mounted Reed Switch Alarm
$39.99
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NWT Honeywell Lyric Wi-Fi Water Leak & Freeze Detector – White
$95.00
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SALE set of 3 GOVEE Wireless Water Leak Detector H5054 (NO GATEWAY)
$28.00$29.39
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Water Guard Sensing Cable Extension (6.5 Ft/2 M)
$34.80
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Seco-Larm Enforcer Curtain Sensors - 22.5 In. - Black (E-9622-4B25)
$29.00
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Safety Technology International, Inc. EM1212DOC, System Record Documents Enclosu
$152.18
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Theben 2039100 Presence Detector / Motion Sensor KNX | Smart Home Automation
$145.00
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TECKNET WiFi Water Leak Detectors 2pk APP Alarm Sound Sensor
$68.99
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SALE Wireless Caregiver Pager Motion Sensor Alarm Indoor Room Bed Alarms and Fall ...
$39.59$43.99
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Security Light Motion Sensor 10000mAh 2 Pack
$107.99
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Motion Security Light 2 Pack 10000mAh 3 Modes
$107.99
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White Glassbreak Sensor with 20ft Range & App Alerts for Gen 3 Security
$75.49
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SALE Wireless Driveway Alarm System - 1/2 Mile Range
$77.59$96.99
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Entry Sensor Pack of 4 - White, Wireless, Battery, Smart Home Compatible
$104.49
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SALE Solar-Powered Strobe Light with Alarm System
$35.19$43.99
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SALE Zigbee Water Leak Sensor Flood Leakage Detector Linkage Alarm Sensor
$22.39$27.99
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Occupancy Sensor Light Switch - Easy Install
$71.99
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BESTOONE Driveway Alarm System, Wireless Motion Sensor, 2 Alarms, 4 Detectors
$55.99
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BESTOONE Wireless Driveway Alarm Motion Sensor System
$78.99
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Motion Sensor Lights 2 Pack 10000mAh 3 Modes
$107.99
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PRO SERIES PWA2 110 dB 9v Battery Operated Water Alarm Sensor Leak Detection
$12.99
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Smart Motion Detector with Color LED Alerts - Ideal for Homes & Retail Spaces
$45.96
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Safety Technology International, Inc. EM1212DOC, System Record Documents Enclosu
$152.18
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GoveeLife Smart Water Leak Detector | Free Shipping
$92.95
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Bosch PROFESSIONAL SERIES PIR Motion Detector | ISC-PPR1-W16 (NIB)
$29.00
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Solar Alarm LED Light Solar Strobe Light Wireless Motion Sensor Detector Outdoor
$20.60
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Driveway Alarms Wireless outside Weatherproof - Motion Sensor Alarms System Moti
$41.99
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Driveway Alarm- 1/2 Mile Long Range Wireless Driveway Alarm Outdoor Weather Resi
$66.99
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$34.00
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ECOELER 3Way Motion Sensor Light Switch in Wall Sensor for Led/Incandescent Bulb
$17.00
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110V 220V 105dB 0‑350℃ Intelligent Over High And Low Temperature Alarm Sensor
$98.80
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Reliance Controls Corporation THP108 PowerBACK! Mains Return Alarm
$36.99
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ADT+ Self Setup Door / Window Sensor White (SSH5R0-29)
$15.00
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Ring Z-Wave range extender. 110 volt.
$23.88
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4-Pack, Dusk to Dawn/Day Night Sensor, Photoelectric Switch, Photo Cell Sensor,
$58.99
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