SALE Treatlife Wifi Presence Sensor 3 Pack 24G Mmwave Radar Smart Motion Sensor
$106.05$111.63
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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 110 dB Water Alarm with Detachable Sensor for Hard-to- Areas
$25.64$26.99
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SALE Versatile Solar Motion Sensor Alarm: 4 Modes & 129dB Siren to Fortify Your Home
$30.39$31.99
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SALE GoveeLife Upgraded Smart Water Leak Detector 1s with 1804ft Ultra-Long Range 1+1
$12.26$12.91
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SALE Battery-Powered Wireless Motion Detector for Indoor/Outdoor Security Monitoring
$37.87$39.86
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SALE SimpliSafe Home Security System Keypad SSKP3 *POWERS ON*
$21.85$23.00
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SALE SimpliSafe Entry Door/Window Sensor (ES1000) - Gen 1 - 2 Pack
$20.00$20.95
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SALE 1/2 Mile Wireless Driveway Alarm - Robust Weatherproof Motion Detection Sensor
$94.04$98.99
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SALE Leviton 110C4-100 100 Pair Phone Wiring Base 110-Type Mount Patch Block w/ Legs
$42.74$44.99
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SALE Water Leak Detector Alarm WiFi Water Flooding Monitor Smart App Sink Overflow...
$35.53$37.40
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SALE MC-58 NO Alarm Security Rolling Gate Garage Door Contact Magnetic Reed Switches
$19.32$20.34
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SALE 2x Solar Alarm Strobe Light Motion Sensor Lamp Waterproof Sound Security Outdoor
$18.99$19.99
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SALE Durability Opticals Fingerprint Reader Fingerprint Sensors Module For Developers
$33.92$35.71
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SALE Aqara Water Leak Sensor - Requires Aqara Hub Wireless - Water Leak Detector NEW
$24.27$25.55
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SALE Smart Home Compatible Water Leak Sensor with 4.2ft Cable and Easy Installation
$38.94$40.99
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SALE Water Leak Detector Set with 100dB Alarm for Basements Bathrooms
$24.69$25.99
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SALE 1*202A Automatic Reset Switch Wardrobe Cabinet Light Switch Door Control .82
$4.91$5.17
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SALE Wardrobe Light Switch Door Touch Switch Automatic Lighting Cupboard Door Con N8
$4.12$4.34
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SALE IPEVO CSW2-02IP SENSOR FOR WHITEBOARD W/adapter
$18.99$19.99
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SALE 202A automatic reset switch wardrobe cabinet light switch door control swit XN
$4.64$4.88
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SALE 220V PIR Body Infrared Motion Sensor Automatic Switch Infrared Intelligent NW-N8
$7.14$7.52
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SALE Resideo Honeywell DT8035V Dual Technology Motion Sensor
$47.49$49.99
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SALE Automatic Water Leak Detector with Sensors and Shut-off Valve
$74.66$78.59
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SALE 2pcs NC Recessed Wired Security Door Sensor Alarm RC-33 Magnetic Reed Switch
$15.38$16.19
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SALE Mighty Mule Wireless Driveway Alarm System - FM231 Open Box New
$52.99$56.04
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SALE Water Leakage Detector Underground Pipeline Leak Detection Tool For Construction
$40.01$42.12
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SALE Water Leakage Detection Device Precise Positioning Underground Water Pipe Leak
$24.65$25.95
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SALE LED Music Rhythm Light Bar Stereo Level Indicator Sound Control Or Audible Line
$46.91$49.38
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SALE Wall Mounted Motion Sensor Automatic Dusk To Dawn Spherical PIR Sensor Outdoor
$18.80$19.79
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SALE Freezer Door Alarm Battery Operated 60 Sec Delay 110 dB Compact White
$30.35$31.95
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SALE 120dB Window or Door Alarm Vibration Security Emergency Burglar Wireless Shock
$20.94$22.04
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SALE LED Outdoor 90~250V 180 Degree Infrared PIR Motion Sensor Detector Wall Light
$21.62$22.76
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SALE INSTEON Smarthome Open/Close Sensor MODEL 2843-222 Door Sensor New in Box
$28.45$29.95
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SALE OC-55 NO+NC Alarm Security Contact Magnetic Reed Switch Rolling Gate Door
$20.02$21.07
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SALE Car Vibration Sensor Alarm Anti Theft Security Device Motorcycle Motion Sensor
$15.66$16.48
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SALE Effortless 3-Piece 12V Light Sensor Switch Set - Automatic Dusk to Dawn Control
$14.24$14.99
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SALE Wuloo 1800 Ft Wireless Outside Driveway Alarm Outdoor Motion Sensor Detector
$95.58$100.61
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SALE Wuloo Wireless Driveway Alarm 1800 Feet Long Range Motion Sensor Alert System
$129.69$136.52
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SALE Cooper VS310U-W White Incandescent CFL Vacancy Switch Sensor 1-Pole/3-Way 1000W
$34.18$35.98
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SALE Door Window NO/NC Recessed Security Contact Sensor Alarm Magnetic Reed Switches
$15.00$15.79
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SALE Battery-Powered Vibration Sensor: Detects Shock, Glass Break & Movement
$41.79$43.99
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SALE 130db Solar-Powered Alarm with Adjustable Volume & Recording for Home Security
$45.59$47.99
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SALE GE Keypad Controlled Wireless Motion-Sensing Alarm Smart Home NEW SEALED
$14.24$14.99
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SALE Advanced Wireless Security Alarm - 125dB Siren with Motion Detection Alerts
$40.84$42.99
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SALE Compact Door Alarm with Adjustable Volume - Prevent Freezer Spoilage Easily
$49.39$51.99
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SALE 2pcs RC-36 NC Recessed Wired Security Contact Sensor Alarm Magnetic Switch White
$13.98$14.72
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SALE 2 Pcs Solar Motion Sensor Alarm - 130dB Dog Barking Deterrent, 4 Modes, USB Cont
$93.09$97.99
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SALE LoRa Wireless Smart Power Fail Alarm - Monitor AC Status & Get Instant Alerts
$50.34$52.99
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