ADT SSH1R0-29-S Door/Window Sensor Lot of 2, Wireless Security MPN SSH1R0-29-S
$25.00
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Sensors & Motion Detectors
Motion, door/window and glass-break sensors are the trip-wires of a security system. Check what hub or panel they pair with (many are brand-specific and won't mix), wired vs wireless, and battery life for wireless units. For motion sensors, pet-immune designs avoid false alarms. Buying spare or used sensors is fine — just confirm the protocol and that they're compatible with your system.
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NEW IN BOX! 8-pack EVA LOGIK WINDOW DOOR ALARMS 120dB LOUD. HOME. OFFICE. DORM.
$34.95
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6 PCS AM312 Mini PIR HCSR312 Infrared Human Motion Sensor For Arduino DIY
$17.78
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2 PCS HCSR501 PIR Human Motion Sensor Module For Arduino Raspberry Pi Part
$21.66
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Home Business Door Open Alarm 500FT Wireless Chime Entry Alert System Kid Safe
$44.67
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GE Window Door Alarm Personal Security
$4.95
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CPVAN CP2 Wireless Home Security System: PIR Motion Sensor Alarm
$28.80
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5 PCS HCSR501 PIR Infrared Body Motion Sensor Module Pyroelectric Switch
$17.77
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Long Range Wireless Driveway Alarm Motion Sensor Alert System - 1800ft Range, Re
$97.99
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Wireless Solar Driveway Alarm System - 1800ft Range, Motion Sensor, Weatherproof
$209.99
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Hanna Products Mail Chime, Wireless Mailbox Alert - Model 1200
$39.99
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SALE Ubiquiti UniFi Environmental Sensor (USL-Environmental)
$74.99$84.99
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New Owlet Dream Sight Baby Monitor OC3A
$59.99
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Defiant Wireless Home Security Door/Window Alarm Kit
$34.99
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Ring Contact Sensor 2nd Gen Riser New
$10.00
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Alarm.com ADC-S2000-T-RB Z-Wave Plus Indoor Temperature Sensor White
$30.00
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Flume 2 Home Water Monitor & Leak Detector + Two Extra Batteries
$99.00
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SALE Water Leak Detection Sensor - WiFi - Mocreo
$35.00$55.00
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SALE Ring Alarm Motion Detector 2nd Gen Z-Wave Sensor White + Box
$12.00$28.00
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Ring Alarm Contact Sensor 2nd Gen Wireless Sensor for Door & Window Sensor NIB
$14.49
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Radio Shack Monitored Motion Detector Security System 49-351 Sealed
$17.00
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2-Pack, Dusk to Dawn/Day Night Sensor, Photoelectric Switch, Photo Cell Sensor,
$23.78
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YCA1001 Ceiling Mounted Motion Sensor Light Switch, 360° PIR Motion Sensor Occup
$21.02
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Secrui Wireless Door Chime M508+D017 433MHz Indoor White LED Plug-In/Battery
$18.68
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SALE DIY Wireless Driveway Alarm - 1 Receiver & 2 Weather-Resistant Sensors Included
$75.57$83.97
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Lot of 70 SafeSense Sounds/Motion Sensor Home / Hotel Alarm -detects pressure
$100.00
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ecobee SmartSensor for Doors and Windows - Pack of 2 (New & Open, Never Linked)
$74.99
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ZHU YAN 2 Pack Black Flush Mount Ceiling 10.63in-black-2 Pack,
$51.57
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YYJLX Modern E26 Small Crystal Chandelier Semi Flush Mount Small, Gold
$69.46
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SALE STAR-SPANGLED 6.3” Motion 6.3 inch, AA or D Battery Operated, Natural White
$14.41$14.84
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Motion Sensor Outdoor Ceiling Light with Remote, 12.2 inch, Oil-Rubbed Bronze
$96.99
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FULEN Motion Sensor Ceiling Light Fixture, Cordless Closet 1 Pack, White
$35.04
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SALE DSC PG9922 (915-3-016) Wireless Glass Break Detector
$65.00$79.00
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Brand New 2GIG 2GIG-DW10-345 Wireless Thin Door or Window Sensor, Battery Magnet
$22.39
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Water Leak Sensor Detector Flood Alarm for Basement RV Moisture 120dB Work Al...
$25.27
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Napco Security Double Tech D-100 Intrusion Detection Unit Motion Detector
$27.99
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2 Pack Visonic Model IR-150 Infra-Red Photoelectronic Detector 150m 500ft Range
$37.99
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Bunker Hill Security Wireless Window/Door Alarm Chime 2-Pack White Battery
$12.49
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Energy-Efficient 2-Pack PIR Motion Sensor Light Switch for CFL/LED/Incandescent
$41.99
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iConcepts Motion Sensor Light, Remote, Magnetic Base, Rechargeable
$15.99
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MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Sw
$10.40
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Cooper Wiring Devices OS306U-W Occupancy Sensor Switch White 600W CFL LED NEW
$14.99
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SALE NEW SimpliSafe Home Door And Window Entry Sensor ES3
$14.49$22.97
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NEW SimpliSafe Entry Sensor Generation White Door and Security ES3 SET OF 2
$27.95
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24GHz Radar Perimeter Alarm - 1/2 Mile Range, Weatherproof Motion Detector
$366.99
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High Bay 360° PIR Ceiling Motion Sensor, 1200-2800 Sq. Ft. Coverage, 8 Pack
$321.99
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Wireless Outdoor Driveway Alarm System - Motion Sensor, Rechargeable, Weatherpro
$158.99
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Motion Sensor LED Stair Lights - 3000K Wired Strip for Safe Stairway Illuminatio
$281.99
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