SALE Portable Outdoor Perimeter Alarm System- 1/4 Mile Waterproof Wireless Motion Sen
$229.47$269.96
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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 Homsecur Pir Motion Sensor Wireless Passive Motion Detector Alarm 433MHz White
$19.20$22.59
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SALE 5pcs NC Recessed Wired Security Contact Sensor Alarm RC-35 Magnetic Door Switch
$18.06$21.25
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SALE 10pcs HC-34A NC Recessed Wired Gate Contact Sensor Alarm Magnetic Reed Switch
$19.71$23.19
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SALE ADEMCO 9500SN Multiplex Glassbreak Detector
$22.94$26.99
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SALE Personal Security Window and Door Alarm, 5 Pack, DIY Protection, Burglar Aler...
$28.78$33.86
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SALE 2pcs MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White
$14.38$16.92
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SALE MC-58 NC+NO Alarm Security Rolling Gate Garage Door Contact Magnetic Reed Switch
$18.28$21.51
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SALE Ceiling Mount, Wall Mount Sensor, Occupancy, Photocell, Hard Wired, White, 2,600
$222.08$261.99
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SALE Orbit B-hyve Smart Flood Sensor 5 Pack IMMEDIATE FLOOD Detection
$42.50$50.00
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SALE HOMSECUR 3pcs Pet-Immune PIR Detector For 433MHz Home Burglar Alarm System
$49.12$57.79
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SALE Philips LCN3110/05 Occ Sensor IA CM IP65 WH New E50
$41.40$48.70
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SALE RC-35 NC Recessed Wired Gate Contact Sensor Alarm Magnetic Reed Switch
$15.06$17.72
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SALE 4pcs RC-33 NO Recessed Wired Security Contact Sensor Alarm Magnetic Reed Switch
$20.65$24.30
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SALE MC-59 NC Alarm Rolling Gate Garage Door Contact Magnetic Reed Switch
$17.94$21.11
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SALE 4pcs RC33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White
$17.54$20.63
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SALE MC-59 NC Alarm Security Contact Magnetic Reed Switch for Rolling Gate Garage
$17.94$21.11
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SALE SimpliSafe Motion Sensor Compatible with Gen 2 Security System
$12.74$14.99
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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 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 Automatic Light Sensor Control Switch DC8-50V Photocell Light Switch Repair Part
$11.84$13.93
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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 AC 85-265V Motion Infrared Sensor Switch For House Garden 180° Detection Range
$11.75$13.82
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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 328ft Infrared Motion Sensor Home Garage Alert Security System
$18.20$21.41
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SALE 2 Pack Rechargeable LED Spotlight for Indoor, Wireless RGB Spot 2 Pack, White
$21.24$24.99
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SALE Leviton ODC0S-I1W 120V 1000W PIR Ceiling Occupancy Sensor Self-Contained - White
$24.99$29.50
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SALE Reliance Home Warning System THP201 Home Monitoring Phone Alert Call Back Up
$43.99$51.75
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SALE Lot of 3 Simplisafe Entry Sensor ES1000 Door - Window - 1st Generation
$18.70$22.00
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SALE 2 x RC-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch White
$14.37$16.90
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SALE Sonin Water Alarm with Flat Sensor 00701 New E53
$25.16$29.60
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SALE New 100 MA 10 x RC-33 Wired Door Contact Sensor Alarm Magnet Reed Switch
$12.99$15.28
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SALE 5V-24V Automatic PIR Body infrared LED Strips Light Motion Sensor Switch
$10.28$12.09
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SALE DC 12V-48V Dusk To Dawn Photocell Light Switch 8-50V Light Sensor Control Switch
$12.52$14.73
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SALE Motion Detector Switch AC100-240V High Quality Replacement for Light Control
$12.43$14.62
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SALE AC 85-265V Motion Infrared Sensor Switch For Exhaust Fan 180° Detection Range
$12.43$14.62
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SALE 5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching j
$11.21$13.19
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SALE Type-C Charging Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$20.00$23.53
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light
$10.28$12.09
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SALE 1Pc USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip aa
$11.21$13.19
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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 315mhz Infrared Motion Sensor Home Garage Alert Security System
$17.88$20.79
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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
$18.24$21.21
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