125dB Motion Sensor Alarm with Remote Control
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Discounted security listings from eBay sellers, biggest markdowns first. Prices and availability change fast — confirm on eBay before buying.
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
125dB Motion Sensor Alarm with Remote Control
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Honeywell 5898 Wireless Dual Tec Motion Sensor White 35 FT X 40 FT New SEALED
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Smart WiFi Door Sensor - Wireless Alerts, Compatible with Alexa/Google - 4-Pack
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Honeywell IS3050A-SN PIR Motion Detector White 35ft New Open Box
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Honeywell Wireless Door/Window Sensor Lyric Compatible White New Sealed
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
GE Cync Smart Wire-Free Motion Sensor White Bluetooth 93105005 Battery Operated
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wireless Driveway Alarm Infrared Motion Sensor Home Garage Alert System NOS
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Driveway Motion Sensor Alarm - Weatherproof Security System
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Honeywell IS3035 Hardwired Pet Friendly Motion Sensor, 12-17m Range
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Indoor Wireless Security Motion Detector System
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
High Sensitivity Water Leak Detector - Underground Pipe Leak Monitor with Earpho
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
GE Interlogix TX-1012-01-1 Micro Wireless Sensor Battery Magnet 2 Pack Sealed
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Convenient Motion Sensor Light Switch Pair
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Maestro Motion Sensor Light Switch - Energy-Efficient, White
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Long Range Wireless Driveway Alarm - Weather Resistant
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Reed Switch NC for Home Security - 10mm Distance
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SimpliSafe MS3 Motion Sensor Detector Security System - NIB-B1A
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
4 ELEGRP Occupancy Sensor Light Wall Switch Passive Infrared Motion Activated
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Indoor Motion Sensor Light Switch - Energy Efficient
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Ring Alarm 5-Piece Security Kit - White (4K11S7-0EN0) 1st Gen - Brand New
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Motion Sensor Switch for Bathroom, Garage, Laundry - 2 Pack
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
GE 60-893 DES3 FAR ENCRYPTION MODULE PROVIDE ENCRYPT DECRYPT ADVENT CONTROL PAN
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Bosch - 40' Range Blue Line GEN2 PIR Motion Detector - ISC-BPR2-W12
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Zigbee Motion Sensor Hub Required - Echo Devices Compatible
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
37 Sensor Starter Kit for BBC Micro bit v1.5 v2
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
38 Chime Tunes Home Security Alarm
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Solar Wireless Driveway Alarm - 1/2 Mile Long Range Receiver Only NEW OPEN BOX
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Interlogix 600-9400-IMAG-KIT Image Sensor PIR Motion White
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
BRYANT MSCM1000-DC MOTION SWITCH (NEW)
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wireless Security Alert - Weatherproof Driveway Alarm Set
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Long Range Wireless Driveway Alarm System
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Maestro Motion Sensor Light Switch - Automatic On/Off
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
GE AP100PI General Electric Mirror Optic PIR Motion Sensor Pets To 44 Lbs 2 Pack
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Sentrol ShatterPoint Residential Acoustic & Seismic Glassbreak Sensor 5620-W
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Acuity Controls Occupancy Sensor Switch WSX PDT EZ WH White 120V Wall Mount NEW!
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Eve Door & Window (Matter) Smart Contact Sensor 20EBN9901 For Apple Home, Google
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
DIY Wireless Driveway Security Alarm - 1/2 Mile Range
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Driveway Alarm with 1/2 Mile Range
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SimpliSafe Motion Detector Sensor (MS3)(SSMS3) Gen 3
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
DSC PG9924 PIR Motion Detector with Integrated Camera White New Open Box
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SimpliSafe Water Sensor WT3 – New In Box
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SimpliSafe Home Security System - Glassbreak Sensor GB3 White - NEW X3
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
LOT OF 3 SimpliSafe GEN 3 Motion Sensor Detector Security System BRAND NEW NIB
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SONOFF SNZB-03PR2 PIR Sensor Smart Zigbee Motion Sensor Light Sensor APP Control
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Easy Installation Door Alarm - 6 Pack Ultra-Slim Design
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Motion Sensor Alarm 125dB Siren 328ft Remote PIR Detector Indoor Wireless
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SMARTGEAR PHOTO/VIDEO DASHBOARD CAM AUTO MOTION DETECT MODE - RET. $49.99(LR-4)
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
EMS DVR Recorder 8-Chan BNC 2 USB ports No Hard Drive VGA Output
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.