SALE Sensor Switch Street Light Control Adjustable Rain Anti‑Thunder Protection 220V
$16.31$22.65
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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 4mm Inductive Proximity Sensor Switch DC 2-Wire Normally Close LJ12A3-4-Z/DX
$11.02$15.30
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SALE 12V Wired Indoor Top Mounted 360 Degree Passive Infrared Motion Detection Sensor
$14.66$20.36
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SALE Nickel Plated Brass LJ12A3-4-J/EZ AC NO Inductive Proximity Sensor Switch Detec
$11.01$15.29
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SALE Adjustable Infrared IR Body Motion Sensor Switch Automatic Module Wall Mount
$12.36$17.17
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SALE NEW Bosch ISC-CDL1-W15G Commercial Series TriTech Motion Detector
$28.00$39.15
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SALE DC9‑24V Waterproof Adjustable Infrared Sensor Human Body Induction Sensor Switch
$20.02$27.80
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SALE Outdoor Waterproof Wired Motion Detector Dual PIR Sensor Pet Immunity Security
$40.95$56.87
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SALE Ultrasonic Liquid Level Sensor Non-Contact DS1603NF V1.0 for Household
$33.94$47.14
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SALE Intelligent PIR Infrared Automatic Sensor Motion Detector Keyhole Lock Light 4
$12.07$16.76
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SALE 12-24V Automatic Door 24.125Ghz Microwave Motion Sensor Autodoor Sensors
$42.34$58.80
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SALE 1PC Automatic Infrared Ray Motion Sensor LED Lamp Home Wall Ceiling Mounted
$11.66$16.19
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SALE Water Leakage Sensor Flood Leak Liquid Detector Probe Alarm for Home Farm
$10.10$14.03
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SALE 5Pcs Magnetic Proximity Sensor High Frequency Approach Sensor 2 Wire Normally
$37.69$52.35
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SALE Water Leakage Detector IP66 Water Proof 90dB Water Leakage Sensor for Bathroom
$15.39$21.37
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SALE New and Sealed Radio Shack Wireless Door Window Alarm with Key Lock 49-424
$14.39$19.99
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SALE 2GIG Door or Window Intrusion Detector Unit with Magnet, 2GIG-DW10-345
$6.99$9.74
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SALE White Compact Freezer Door Alarm with 60 Sec Delay & 110dB Siren
$31.19$42.73
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SALE SimpliSafe ES3 Entry Door Window Sensor Magnetic White 3rd Generation New
$8.50$11.68
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SALE Brand NEW Honeywell Resideo SIXGBA Wireless Glass Break Detector
$35.00$47.96
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SALE NEW Resideo IS310WH Passive Infrared Sensor
$32.99$45.17
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SALE Doberman Security Window/Door Alarm Kit Model SE-0137 White Brand New Sealed
$9.50$12.98
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SALE Eve Door & Window Sensor (Matter/Thread) Wireless Contact Sensor – New
$16.00$21.97
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SALE Unenco Conserver Occupancy Sensor PIR-1000P Pyroelectric 1980s NOS Vintage
$21.89$29.99
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SALE Winland WB-200 WaterBug 12V Transmitter Sensor
$54.00$73.25
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SALE SimpliSafe Entry Sensor 3rd Generation White Door and Security ES3 Lot Of 2 NOB
$19.99$27.00
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SALE NEW SimpliSafe Entry Sensor 3rd Generation White Door and Security ES3 SET OF 2
$20.00$27.00
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SALE Lot of 4 blue by ADT Door & Window Sensors SSH1R0-29 Brand New
$44.39$59.99
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SALE Ring Alarm Glass Break Sensor 2nd Gen Z-Wave Model Non-Sidewalk NEW - Open Box
$44.00$59.60
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SALE NEW Bosch ZX794Z Alarm System Long Range PIR Motion Sensor
$37.49$49.99
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SALE Motion Detector Alarm System for Home Security
$77.24$102.99
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SALE 2x Sentrol Surface Mount Magnetic Contact Sensor Alarm Reed Switch Gray Lot
$11.24$14.99
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SALE Honeywell IS3050A-SN PIR Motion Detector White 35ft New Open Box
$37.49$49.99
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SALE Honeywell Wireless Door/Window Sensor Lyric Compatible White New Sealed
$18.71$24.95
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SALE Smart WiFi Door Sensor - Wireless Alerts, Compatible with Alexa/Google - 4-Pack
$73.48$97.97
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SALE Honeywell 5898 Wireless Dual Tec Motion Sensor White 35 FT X 40 FT New SEALED
$149.25$199.00
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SALE 125dB Motion Sensor Alarm with Remote Control
$34.49$45.99
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SALE 4x Sentrol 1032 Magnetic Door Window Contact Reed Switch Alarm Sensor
$18.74$24.99
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SALE 12x GE Sentrol 1032-N Magnetic Contacts Alarm Door Window Reed Switch Sensor
$33.74$44.99
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SALE DIY Outdoor Security Alert - 1 Receiver 2 Sensors
$63.74$84.99
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SALE GE Cync Smart Wire-Free Motion Sensor White Bluetooth 93105005 Battery Operated
$11.99$15.99
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SALE Honeywell IS3035 Hardwired Pet Friendly Motion Sensor, 12-17m Range
$15.00$19.95
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SALE Driveway Motion Sensor Alarm - Weatherproof Security System
$63.74$84.99
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SALE Indoor Wireless Security Motion Detector System
$34.49$45.99
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SALE Wireless Driveway Alarm Infrared Motion Sensor Home Garage Alert System NOS
$14.99$19.99
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SALE High Sensitivity Water Leak Detector - Underground Pipe Leak Monitor with Earpho
$43.49$57.99
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SALE GE Interlogix TX-1012-01-1 Micro Wireless Sensor Battery Magnet 2 Pack Sealed
$37.49$49.99
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SALE Maestro Motion Sensor Light Switch - Energy-Efficient, White
$37.49$49.99
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