SALE MC-59 NC Alarm Security Contact Magnetic Reed Switch for Rolling Gate Garage
$17.94$21.11
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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 SimpliSafe Motion Sensor Compatible with Gen 2 Security System
$12.74$14.99
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SALE Automatic Light Sensor Control Switch DC8-50V Photocell Light Switch Repair Part
$11.84$13.93
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SALE Infrared Sensor Switch AC100-240V Brand New 1PCS for Office & Home Lighting
$11.75$13.82
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SALE ABS 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch
$12.28$14.45
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SALE 5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$10.60$12.47
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SALE Wall Mount 24.125GHz Human Inductive Motion Microwave Radar Sensor For Elevators
$18.56$21.83
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SALE AC 85-265V Motion Infrared Sensor Switch For House Garden 180° Detection Range
$11.75$13.82
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SALE 328ft Infrared Motion Sensor Home Garage Alert Security System
$18.20$21.41
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SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen I
$9.72$11.43
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SALE Qolsys QS1231-840 IQ Wireless PIR Motion Sensor, Interlogix Compatible Security
$25.00$29.00
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SALE SwitchBot WiFi Water Sensor, Smart Water Leak Detector
$18.06$21.00
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SALE 110db Wireless Vibration Alarm - Anti-Theft Security for Vehicles & Doors
$30.09$34.99
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SALE 5-24V Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$10.48$12.19
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SALE Low-Cost Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$9.80$11.39
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SALE 315mhz Infrared Motion Sensor Home Garage Alert Security System
$17.88$20.79
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SALE Digital Hygrometer Thermometer WiFi Smart Temperature Humidity Sensor Meter
$18.95$22.03
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SALE 315mhz Infrared Motion Sensor Home Garage Alert Security System
$18.24$21.21
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SALE Low-Cost Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$9.92$11.53
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SALE NEW Ring Alarm Motion Detector (2nd Gen) (1-Pack) - White
$19.00$21.98
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light
$9.36$10.88
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SALE Ring Alarm Motion PIR Detector Sensor Home Security System Wireless Wifi 2nd Gen
$18.99$21.98
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SALE 20m Single Beam Alarm Photoelectric Infrared Detector Alarm Home Security
$13.96$16.23
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SALE Easy To Remove Water Leak Alarm Flood Level Overflow Detector Sensor New
$9.53$11.08
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SALE 5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching j
$10.21$11.87
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SALE New Infrared Motion Sensor Home Garage Alert Security System DIY Your Home
$17.53$20.38
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SALE Microwave Radar Human Motion Detector Sensor Module for Supermarkets Atms
$18.23$21.20
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SALE 20M One Beam Infrared Sensor Detector Alarm Photoelectric Infrared Laser Sensor
$14.23$16.55
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SALE Automatic Light Sensor Control Switch DC 8V-50V Photocell Light Switch Repair
$11.63$13.52
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SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen G
$9.55$11.10
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SALE New 10ft-23ft Infrared Motion Sensor Home Garage Alert Security System
$17.89$20.80
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SALE ABS Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$9.72$11.30
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SALE AC 85-265V Maintenance Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.54$13.42
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SALE ABS Smart Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$18.58$21.60
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SALE DC USB Body Infrared PIR Motion Sensor Switch Detector Switch For LED Light m
$10.41$12.11
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SALE Motion Sensor Switch with Fresnel Lens AC100-240V for Track Lights & Spotlights
$11.54$13.42
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SALE Swann Leak Alert Sensor - White - Detect Leaks Mobile Alert Brand New ShipsFree
$15.52$17.99
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light G
$9.55$11.10
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SALE SimpliSafe SS3-KEYFOB Key Fob Remote for SimpliSafe Systems - Black
$18.00$20.82
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SALE PIR Motion Sensor Switch Auto-Sensing On/Off AC100-240V for Schools & Buildings
$12.12$14.09
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SALE AC 85-265V Replacement Motion Infrared Sensor Switch For Outdoor 180° Detection
$12.12$14.09
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SALE Smart Thermometer Hygrometer Wi-Fi LCD Temperature Humidity Sensor Home Digital
$19.50$22.67
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light F
$10.02$11.65
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SALE 1Pc USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip bb
$10.93$12.71
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SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen F
$10.02$11.65
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SALE New 45° Infrared Motion Sensor Home Garage Alert Security System
$18.77$21.83
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SALE Automatic Light Sensor Control Switch DC 8V-50V Photocell Light Switch Parts
$12.20$14.19
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SALE 12-24V 24.125GHz Human Inductive Motion Microwave Radar Motion Tracking Sensor
$19.13$22.25
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