Wireless Security Driveway Alert System 400ft Range Bunker Hill Brand NEW Sealed
$14.76
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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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MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Sw
$10.24
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GE By Jasco Battery Operated Audible Window/Door Alarms, 2 Pack
$15.00
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SENSOR MOTION PIR WIRELESS ALARM WITH 2 REMOTE CONTROLS SHED GARAGE HOME CARAVAN
$13.99
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Wireless Driveway Alarm Sensor - DCMT-4000 Long Range, Passive Infrared Motio...
$72.36
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Water Leak Sensor 3-Pack Water Detector Long Range No WiFi Smart Home System
$74.98
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SALE Indoor Door & Window Sensor - Hue Bridge Required^
$123.19$153.99
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Sensor Switch CMR 10 Contractor Ceiling Mount Occupancy Sensor 28' Radius White
$55.00
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NEW Battery-Operated Water Alarm Sump Accessory Detect Leaks Loud 110db Alarm
$16.99
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Power Inverter, 2000W Modified Sine Wave Inverter, DC 12V to AC 120V Car Convert
$178.20
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Designers Fountain Flush Mount Ceiling Light, 24 24 inches, Brushed Nickel
$79.77
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CANARM ISF633A03ORB Nash 3 Bulb Semi-Flush Mount 3 Light, Oil-Rubbed Bronze
$81.77
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Z-Wave Siren & Chime compatible w/ Samsung SmartThing Hub
$13.99
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SONOFF CR2477 Smart temperature sensor with external probe, ZigBee 3.0 IP65
$24.34
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QXMH Solar Outdoor Motion Sensor Alarm - Infrared, Dog Barking&Gunshot 1 Pack
$33.11
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KINDEEP Battery Operated Ceiling Light: Wireless Closet Light Motion White
$28.19
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LINEWAY Motion Sensor Ceiling Light - Indoor Activated 1 Pack, White
$26.11
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2 Pack PIR Motion Sensor Switch DC 12V-30V Auto ON/OFF for Cabinet Closet
$28.98
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12~24V Home Security One Beam Alarm Photoelectric Infrared Laser Sensor Detector
$15.73
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2 Pack PIR Motion Sensor Switch 12V-30V 3A Adjustable Delay For Cabinets
$28.98
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10ft-23ft Infrared Motion Sensor Home Garage Alert Security System
$19.56
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E-SDS Water Leak Detector with Shutoff Valve,Sensors and Sounds Alarm,Automatic
$156.11
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Smart Water Leak Detector 3 Pack - WiFi Sensor with 1804ft Range, Alarm & 5-Year
$79.99
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SALE AC100-240V Infrared Sensor Switch Adjustable Delay Time for Lighting Control
$11.54$13.42
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HONWELL Battery Powered Ceiling Light with 5 inch-with remote, Multicolor
$33.99
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LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Switch
$36.91
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SALE 1Pc USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip cc
$10.64$12.23
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SALE 1 Set 24.125GHz Human Inductive Motion Microwave Radar Sensor For Automatic Door
$18.63$21.41
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Lithonia Lighting CPX 2x4 LED Flat 2 ft. x 4 ft., 4000K | Smooth Satin Lens
$163.99
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SALE AC 85-265V High Quality Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.80$13.56
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SALE AC100-240V PIR Motion Sensor Switch for LED Lights Auto On/Off 140° Detection
$11.80$13.56
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SALE Low-Cost Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$9.93$11.41
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Safety Technology STI-V34100 Wireless Solar Driveway Monitor with Voice Receiver
$124.99
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SALE 5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching n
$10.41$12.11
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SALE Digital Hygrometer Thermometer WiFi Smart Temperature Humidity Sensor Meter
$18.98$21.82
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Instant Noise Monitoring Device for Airbnb, Smart Decibel Meter App Control
$179.00
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Smart LCD Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$20.32
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Zigbee 3.0 Vibration Sensor Real Time Door Window Tilt Alarm Home Security Prote
$19.31
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Tuya Zigbee Smart Light Sensor Luminance Illumination Brightness Detector Batter
$20.19
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Zigbee 10G Mmwave Radar Motion Sensor Human Detector with Illuminance Temperatur
$23.17
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Zigbee 3.0 PIR Motion Sensor Smart Home Human Body Infrared Detection Security A
$18.47
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Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen B
$10.11
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SALE Solar Outdoor Motion Sensor Alarm-129db Loud Siren Lamp Noise Maker, 4 Workin...
$48.44$60.55
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MC-31 Wired NC Magnetic Door Window Contact Sensor Alarm Reed Switch, 5 Pack
$11.99
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SALE 20m Anti-Theft Alarm Infrared Detector Sensor Photoelectric Home Security System
$15.63$17.37
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SALE Interlogix 600-9400-IMAG-KIT Image Sensor PIR Motion White
$14.99$19.99
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Body Infrared PIR Motion Sensor Switch For LED Light Strip Automatic DC 12V C
$8.22
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SALE 129dB Outdoor Solar Alarm With Motion Sensor 4 Modes Dog Barking Gunshot Sounds
$25.75$28.61
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