SALE Tuya Smart WiFi Smoke Sensor 85dB Sound Security System Control Fire Protectioyx
$22.97$24.97
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Sensors & Motion Detectors deals
Discounted security listings from eBay sellers, biggest markdowns first. Prices and availability change fast — confirm on eBay before buying.
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 
SALE Tuya Smart WiFi Smoke Sensor 85dB Sound Security System Control Fire Protectioyx
$22.97$24.97
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Tuya Smart WiFi Smoke Sensor 85dB Sound Security System Control Fire Protectioyx
$22.97$24.97
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 4 Modes Solar Induction Alarm 129dB Motion Sensor For Outdoor Farm Security
$24.70$26.85
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft B
$14.95$16.25
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE ABS 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch
$12.96$14.09
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 328ft Infrared Motion Sensor Home Garage Alert Security System
$19.13$20.79
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Infrared Sensor Switch AC100-240V Brand New 1PCS for Office & Home Lighting
$12.41$13.49
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE AC 85-265V Motion Infrared Sensor Switch For House Garden 180° Detection Range
$12.41$13.49
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light I
$10.29$11.19
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Wall Mount 24.125GHz Human Inductive Motion Microwave Radar Sensor For Elevators
$19.49$21.19
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 5V/1A Smart Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$19.86$21.59
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen I
$10.29$11.19
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$11.21$12.19
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE New 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch
$12.78$13.89
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 4 Modes Solar Motion Sensor Alarm 129dB Outdoor Siren With 13 Sounds For Farm
$24.83$26.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE DC8-50V Photocell Light Sensor Switch For Automatic Switching Lights Control
$12.32$13.39
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 1pc Driveway Alarm Infrared Motion Sensor Home Garage Alert Security System
$18.94$20.59
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Smart Caregiver Add-On/Replacement Wireless Floor Sensor Mat - 24In X 48In - Flo
$131.50$142.94
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Black 24.125GHz Human Inductive Motion Microwave Radar Sensor For Automatic Door
$19.31$20.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip 5-24V
$11.03$11.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$11.03$11.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Infrared Sensor Switch AC100-240V Brand New 1PCS for Office & Home Lighting
$12.23$13.29
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen I
$10.11$10.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE DC8-50V Photocell Light Sensor Switch For Automatic Switching Lights Control
$12.32$13.39
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE AC 85-265V Motion Infrared Sensor Switch For House Garden 180° Detection Range
$12.23$13.29
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 328ft Infrared Motion Sensor Home Garage Alert Security System
$18.94$20.59
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE New ABS Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$10.29$11.19
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 4 Modes Solar Motion Sensor Alarm 129dB Outdoor Siren With 13 Sounds For Farm
$24.83$26.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft
$15.08$16.39
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Home Security Single Beam Alarm Photoelectric 20M Infrared Laser Sensor Detector
$15.08$16.39
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 5V/1A Smart Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$19.68$21.39
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip h
$11.03$11.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Wall Mount 24.125GHz Human Inductive Motion Microwave Radar Sensor For Elevators
$19.31$20.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen A
$10.11$10.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip hh
$11.03$11.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Outdoor Solar Motion Detector Alarm 129dB 4 Working Modes For Warehouse Garage
$24.83$26.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light I
$10.11$10.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light A
$10.11$10.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE New Water Leak Alarm Flood Level Overflow Detector Sensor Home Security Alert
$10.29$11.19
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Automatic Light Sensor Control Switch DC8-50V Photocell Light Switch Repair Part
$12.32$13.39
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE ABS 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch
$12.78$13.89
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Abode Home Security System Shock Vibration Sensor 104022
$27.89$29.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching
$10.48$11.27
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Abode Home Security System Door Window Contact 104013
$27.89$29.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE 10 Sets Pack of Wired Surface Mounted Alarm Magnetic Contacts Door Window Reed
$21.42$22.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Abode Home Security System Key Fob 104011
$37.19$39.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SALE Resideo FG-1625 Flexguard Glass Break Detector New
$27.95$30.00
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.