SALE 10pcs RC-36 NC Recessed Wired Security Contact Sensor Alarm Magnetic Reed Switch
$27.87$32.79
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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 (G) Qolsys IQ Panel 2 Security System QS9201-1208-840 Panel Only
$106.22$124.96
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SALE (G) ADT Qolsys IQ Remote 7" Touchscreen Panel QW9104-840 w/ Power Adapter
$110.49$129.99
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SALE 10PCS/1Bag NEW PM-F65 photoelectric switch For Panasonic Free Shipping
$73.95$87.00
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SALE OC-55 Normally Closed Alarm Security Rolling Gate Magnetic Reed Switch
$15.61$18.36
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SALE Wired Door Contact Sensor SHOPS NO NC Surface Mount Magnetic Reed Switch Black
$14.89$17.52
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SALE Chamberlain Wireless Pedestrian & Vehicle Sensor PIR2300R Open Box
$72.25$85.00
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SALE Corporation THP108 Powerback Utility Power Mains Return Alarm Return Alert
$42.48$49.98
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SALE Wireless Driveway Alarm 1800ft Solar Motion Sensor, Weatherproof, Rechargeabl...
$100.09$117.75
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SALE SimpliSafe Home Security System Panic Sensor Button (PB3)(SSPB3) USED
$12.71$14.95
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SALE SimpliSafe Home Security System Panic Sensor Button (PB3)(SSPB3) NEW
$16.96$19.95
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SALE 10 x RC-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Switch
$23.78$27.98
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SALE 3 Pcs Black Magnetic Reed Switch, Wired Door Contact, NO/NC, Surface Mount
$23.48$27.62
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SALE 1PCS KEYENCE IV-G500CA Vision Sensor New
$475.35$559.24
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SALE 5pcs RC-35 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch
$17.44$20.52
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SALE New Barracuda Water Detector Text Email Control Tower 691-3703
$38.71$45.54
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SALE Barracuda Pumps 691-3705 Wireless Water Detector Floor Sensor New Home Security
$24.50$28.82
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SALE DSC PG9922 PowerG Wireless Glass Break Detector NEW Qolsys IQ4 IQ2
$67.00$79.00
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SALE New in Box! Infrared Detector Portable Handheld Anti-Surveillance - XO-CRP01
$24.65$29.00
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SALE 5pcs RC-36 NC Recessed Wired Door Contact Sensor WINDOW Magnetic Reed Switch
$18.41$21.66
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SALE 1/2 Mile Wireless Driveway Alarm - Expandable Weather Resistant Security System
$71.76$84.42
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SALE Advanced Wireless Motion Detector with Solar Power - Weatherproof & Customizable
$100.09$117.75
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SALE GE Smart Home Indoor Magnetic Window Alarm NEW
$9.94$11.69
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SALE Solar Motion Sensor Alarm Outdoor Infrared Sound & Light Alarm, 100 dB Siren ...
$40.79$47.99
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SALE 20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft
$14.49$17.05
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SALE Mighty Mule Wireless Driveway Alarm System - FM231
$33.98$39.98
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SALE New ABS Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$9.89$11.64
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light I
$9.72$11.43
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SALE Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip h
$10.60$12.47
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SALE 5V/1A Smart Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$18.91$22.25
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SALE OC-55 NO+NC Alarm Security Contact Magnetic Reed Switch Rolling Garage Door
$17.77$20.90
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SALE OC55 NO+NC Alarm Security Contact Magnetic Reed Switch ROLLING GATE GARAGE DOOR
$19.14$22.52
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SALE Visonic Clip SMA White 2.4GHz Handheld Wireless Curtain Detector New
$11.90$14.00
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SALE MC-56 NO Alarm Security Rolling Gate Garage Door Contact Magnetic Reed Switch
$17.50$20.59
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SALE MC-52 NC+NO Alarm Security Rolling Gate Garage Door Contact Magnetic Reed Switch
$17.93$21.09
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SALE Lot Of 6✨Sengled Smart Window & Door Sensor✨2 Packs✨Compatible With Alexa/Google
$73.50$86.47
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SALE Loud Water Sensor Alarm Detector 100dB Battery Operated Flood Protection
$19.83$23.33
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SALE ADI Pro Request To Exit REX PIR Motion Detector Device Off White New E34
$38.78$45.62
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SALE Seco-Larm Enforcer No Touch Request-to-Exit Sensor (SD-927PKC-NEQ) New E13
$58.95$69.35
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SALE Lot of 4 Wireless Driveway Alarm Infrared Motion Sensor Home Garage Alert.
$22.09$25.99
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SALE Surface Mount NC Magnetic Contact Switch 5 Pack for Home Security Alarm Systems
$25.30$29.77
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SALE American Electric Instant On Decorator Household Safety Flood Lite Halogen
$13.36$15.72
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SALE X10 MS16A ActiveEye Motion Sensor
$10.20$12.00
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SALE 500FT Long Range Wireless Motion Sensor Alarm - Enhance Your Security Outdoors
$50.98$59.98
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SALE Goveelife Upgraded Smart Water Leak Detector 1s With 1080ft
$14.54$17.10
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SALE eMACROS 1/2 Mile Long Range Solar Wireless Driveway Alarm Outdoor, Wi-Fi
$25.50$30.00
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SALE SimpliSafe ES3 Entry Door Window Sensor Magnetic White 3rd Generation New
$9.98$11.68
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SALE Smart WiFi Door Sensor - Wireless Alerts, Compatible with Alexa/Google - 4-Pack
$66.38$78.09
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