SALE Digital Hygrometer Thermometer WiFi Smart Temperature Humidity Sensor Meter
$18.98$21.82
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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 AC 85-265V High Quality Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.80$13.56
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SALE Low-Cost Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$9.93$11.41
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SALE 5-24V Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$10.64$12.23
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SALE 1Pc USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip cc
$10.64$12.23
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SALE Smart Motion Activated Light Switch - 2 Pack, PIR Infrared Control, Certified
$48.71$55.99
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SALE 315mhz Infrared Motion Sensor Home Garage Alert Security System
$18.27$21.00
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SALE 1 Set 24.125GHz Human Inductive Motion Microwave Radar Sensor For Automatic Door
$18.63$21.41
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SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen B
$9.75$11.21
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light B
$9.75$11.21
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SALE Seco-Larm E-931-S50RRGQ Reflective Photoelectric Beam Sensor, up to 50Ft Sensing
$82.01$94.26
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SALE 2PCS NC Recessed Wired Security Sensor Alarm RC-33 Magnetic Reed Switch Brown
$13.94$16.02
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SALE OC-55 NO+NC Alarm Security Contact Magnetic Reed Switch
$18.18$20.90
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SALE 2 x MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White
$15.68$18.02
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SALE 2gig Technologies 2GIG-TAKE-319 TAKE Switch Wireless Takeover Module - New
$32.26$37.08
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SALE Wired Door Contact Sensor NC Surface Mount Magnetic Reed Switch
$12.81$14.72
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SALE 45° Infrared Motion Sensor Home Garage Alert Security System
$18.45$21.21
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SALE Motion Sensor Switch with Time/Lux Adjustment AC100-240V for Office & Home Use
$11.91$13.69
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SALE DC USB Body Infrared PIR Motion Sensor Switch Detector Switch For LED Light
$10.74$12.35
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SALE 24.125GHz Human Inductive Motion Microwave Radar Motion Tracking Sensor
$18.81$21.62
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SALE 20m Single Beam Alarm Photoelectric Infrared Detector Alarm Home Security NEW
$14.69$16.88
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SALE 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch 7-17mm
$12.45$14.31
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SALE Automatic Light Sensor Control Switch DC 8V-50V Photocell Light Switch Replace
$12.00$13.79
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SALE AC 85-265V Brand New Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.91$13.69
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light D
$9.85$11.32
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SALE MC-59 NC Alarm Security Contact Magnetic Reed Switch
$16.55$19.02
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SALE Wired Door Contact Sensor NO NC Magnetic Reed Shop Switches
$15.09$17.35
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light A
$9.67$10.99
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SALE AC 85-265V Portable Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.70$13.29
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SALE Betterlink 1/2 Mile Long Range Solar Wireless Driveway Alarm System Ip65
$70.37$79.97
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SALE Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen A
$9.67$10.99
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SALE Mighty Mule Wireless Driveway Alarm System - FM231 (New Sealed)
$44.95$50.99
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SALE DC8-50V Photocell Light Sensor Switch For Automatic Switching Lights Control
$11.78$13.39
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SALE AC100-240V Motion Sensor Switch PIR Infrared Auto On/Off for LED Lights White
$11.70$13.29
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SALE Doohickey Security Alarm for Home Doors & Windows 4 pcs -90 dB- PB476 Brand New
$9.00$10.21
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SALE DIY Wireless Driveway Alarm with 1 Receiver & 2 Sensors - Long Range Security
$65.99$74.99
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SALE Expandable Wireless Driveway Alarm - 1/2 Mile Range Motion Detector System
$57.19$64.99
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SALE Electronic Watchdog (ED-20) No Power Cord
$22.00$25.00
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SALE 328ft Infrared Motion Sensor Home Garage Alert Security System z
$17.93$20.38
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SALE 20m Single Beam Alarm Photoelectric Infrared Detector Alarm Home Security A
$14.28$16.23
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SALE 4 Mode Solar Alarm With Motion Sensor 129dB Red Blue Lights For Garden Security
$23.51$26.72
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SALE Lithonia Lighting Jelly Jar Light Fixture, Incandescent Utility Vapor Tight
$37.34$42.62
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SALE Ubiquiti UniFi Environmental Sensor (USL-Environmental)
$74.99$84.99
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SALE Effective Device Water Leak Alarm Flood Level Overflow Detector Security
$9.94$11.30
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SALE NOx Sensor Thread Chaser M20 12220 LISLE 12220 83045122203
$18.40$20.99
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SALE Brand New 2GIG 2GIG-DW10-345 Wireless Thin Door or Window Sensor, Battery Magnet
$21.55$24.49
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SALE Anti-Pet PIR Motion Sensor Wired Alarm Dual Infrared IR Detector Pet Immune USA
$22.26$25.29
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SALE New 24.125GHz Human Inductive Motion Microwave Radar Sensor For Automatic Door
$18.65$21.19
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