SALE Wireless Door Window Protection Sensors - Pack of 4`
$115.19$191.99
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Sensors & Motion Detectors deals
Discounted security listings from eBay sellers, biggest markdowns first. Prices and availability change fast — confirm on eBay before buying.
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SALE 
SALE Bunker Hill Security Driveway Alert System Wireless Intruder Alarm (BRAND NEW)
$17.50$28.99
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SALE Commercial/Residential Motion Sensor
$39.59$65.99
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SALE 10.525GHz Microwave Motion Sensor for Raspberry Pi & Arduino
$33.59$55.99
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SALE Dual Passive Infrared Motion Detector - Wired PIR Sensor
$30.59$50.99
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SALE Wireless Door Window Protection Sensors - Pack of 4//
$115.19$191.99
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SALE Versatile 3 Pack of 8” Motion Sensor LED Closet Lights - 3 Color Temperatures
$16.17$26.95
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SALE SimpliSafe Original Generation Door/Window Entry Sensor (ES1000) - NEW
$12.60$21.00
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SALE NEW SimpliSafe Home Door And Window Entry Sensor ES3
$14.95$25.00
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SALE Rechargeable Motion Sensor LED Light - 3 Pack with 120° Detection & Easy Install
$18.59$30.99
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SALE Heath Zenith white motion sensor dual outdoor flood lights 120V
$16.20$27.00
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SALE Solar Motion Sensor Alarm 129db Loud Siren
$26.39$43.99
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SALE Home Business Driveway Alarm - 3 PIR Sensor, LED Indicator
$75.59$125.99
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SALE Solar Motion Sensor Alarm-129db Siren, Remote Control
$41.99$69.99
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SALE Outdoor Motion Sensor Detector - 1800ft Range Driveway Alert
$70.19$116.99
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SALE Solar Motion Sensor Alarm with Strobe Light
$35.99$59.99
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SALE Outdoor Solar Motion Sensor Dog Barking Sound Alarm Strobe Light Animal Repeller
$31.51$51.51
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SALE Solar Power Motion Sensor Loud Sound Light Alarm Dog Barking Gunshots Repeller
$31.63$51.63
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SALE Automatic Water Leak Detector w/ Sensors & Stut-off Valve Water Leak Detecting
$66.51$108.81
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SALE Solar Motion Sensor Alarm Outdoor - Dog Barking & Gunshot Sound, Support Record
$31.63$51.63
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SALE Bunker Hill Security Wireless Driveway Alert System Model 69590 Range 200 Ft
$17.95$28.99
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SALE Pack Of 2 Globe Wi-Fi Smart Motion Detector No Hub Required Battery Operated
$14.98$23.99
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SALE Chamberlain CWA2000 Wireless Motion Alert System BASE ONLY! - NO SENSOR!
$19.95$31.99
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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 with Sensors and Shut-off Valve
$78.60$125.55
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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 with Sensors and Shut-off Valve
$78.60$125.55
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SALE Moen 920-004 Smart Leak Detector
$56.36$88.00
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SALE Water Leak Detection Sensor - WiFi - Mocreo
$35.00$55.00
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SALE Moen 920-005 Smart Leak Detector
$153.68$240.00
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SALE DSC SD 15W-ULF 15W Dual Tone Surface Mount Electronic Siren
$12.99$19.99
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SALE Qolsys QS1231-840 IQ Wireless PIR Motion Sensor, Interlogix Compatible———-19
$32.49$49.99
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SALE Tuya Smart Home Angle 110°Matter Thread USB PIR Motion Sensor APP Remote Control
$25.08$38.59
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SALE Motion Sensor Solar Powered Detector 120dB Home Alarm Waterproof Strobe Siren
$25.21$38.79
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SALE Home Security WiFi Smart Door Window Sensor Magnetic Detector Burglar Alarm
$15.07$23.19
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SALE Charging Camera Detector Finder W/ 12 LED Light Wireless Camera Signal Scanner
$19.36$29.79
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SALE Greeters Supermarket Entry Sensor Doorbell Rechargeable Recording Shop Reminder
$11.17$17.19
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SALE Smart Ceiling Light Tuya WIFI/Zigbee Smart Sensor Millimeter Wave Radar Detector
$24.89$38.29
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SALE Tuya Smart Water Leak Sensor Wifi Voice Remote Control for Alexa & Google Home
$24.30$37.39
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SALE Tuya WiFi 433mhz Home Security Burglar Alarm Door Window Sensor Voice Control
$11.82$18.19
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SALE ZigBee PIR Motion Sensor Detector Smart Life Tuya APP Control Home Alarm System
$21.38$32.89
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SALE Adopts Wave Radar 90°Detection Tuya Wifi/Zigbee Human Smart Human Body Sensor
$22.81$35.09
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SALE Smart Wi-Fi Home Window Door Burglar Security Alarm Sensor System APP Control
$16.37$25.19
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SALE 1PC SONOFF Zigbee Human Presence Sensor SNZB-03P Smart Scenes Motion Detector
$17.74$27.29
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SALE TUYA ZigBee Water Leak Detector Flood Sensor-Water Tank Full Water Linkage Alarm
$11.69$17.99
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SALE Magnetic Door Window Reed Switch Contact Switch Alarm Security System
$8.90$13.69
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SALE Magnetic Door Sensor Doorbell Close Door Reminder Window Burglar Safe Alarm
$10.33$15.89
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SALE Tuya WiFi Smart Temperature Humidity Sensor Remote Thermometer Detectors
$14.23$21.89
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