New DC 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch
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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 DC 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch
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5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip aa
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1PC Automatic Light Sensor Control Switch DC 8V-50V Photocell Light Switch
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20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft B
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Aeotec ZW130 WallMote Quad Open Box
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Photoelectric Sensor 8 Pack Outdoor Dusk To Dawn Swivel Mount
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M5Stack Official Infrared Reflective Sensor Unit
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Photoelectric Sensor 8 Pack Outdoor Dusk To Dawn Swivel Mount
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SONOFF Zigbee 3.0 Human Presence Sensor Motion Sensor SNZB-06P Local Smart Scene
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Ride Leveling Height Sensor Compatible with 1998-2014 Mercedes-Benz
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SURAIELEC Battery Ceiling Light with Wall Switch, Operated, White
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SKEJAO Flush Mount Ceiling Light Fixture,3-Light 13.1inch, Black
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HKZTUY Ceiling Fan LED Light Replacement Panel, 24W 6.3 in, 6.29 Inch, White
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Ride Leveling Height Sensor Compatible with 1998-2014 Mercedes-Benz
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SUNVIE 2 Pack LED 120V SpotLights Indoor, 3W Up Lights Floor 2 Pack, Black
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WYZE SENSE CONTACT SENSORS (4 PACK)
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Wyze WHSK1 Sensor Sense Starter Kit - White
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New - Set of 10 - Swann Wireless Window & Door Sensor Alarm Loud Siren
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Solar Driveway Alarm Wireless 1800ft Motion Sensor
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Honeywell DT-6360STC DUAL TEC Motion Sensor
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Universal USB Port Detector PIR Motion Sensor Switch For Led Light Strip
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10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch 7-17mm
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Smart Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor For Alexa/Google
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20m Single Beam Alarm Photoelectric Infrared Detector Alarm Home Security NEW
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Honeywell DT-6360STC DUAL TEC Motion Sensor
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Brand New DSC PowerG PG9945 Wireless Door Window Sensor
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Moen Flo 920-004 Smart Water Leak Detection System
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Daunton Small Semi Flush Mount Ceiling Light Fixture, Vintage 9.45in, Black
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Wired Door Contact Sensor NO NC Type Surface Mount Magnetic Reed Switch Black
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Winland Electronics Vehicle Alert VAL-1 Wired System For Driveways
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DSC WS4904P Wireless Motion Sensor - White
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2GIG Security 2GIG -GNGRD1-345 Wireless Gun Motion Detector Lock New
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IP67 Waterproof Photoelectric Beam Sensor for Gates & Garage Doors, 40ft Range
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NIR Reflective Photoelectric Sensor for Outdoor Gates & Garage Doors - IP66 Weat
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NIR Reflective Photoelectric Sensor - Weatherproof, Adjustable, Pack of 2
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Solar Motion Sensor Alarm 129Db with Flashing LEDs - 6 Pack Green
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Alarm.com ADC-S40-T Temperature - Humidity Sensor Brand New Sealed Box
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Rechargeable LED Spotlight for Indoor, Wireless RGB Spot Light
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Yolink Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water
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Moen 920-004 Smart Leak Detector
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Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC with Adjus
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Leviton OPP20-D1 Occupancy Sensor Power Pack Auto On 120-230-277V Gray
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WATER ALARM dual-purpose Basement Sentry 148138 NEW! sump pumps, water heaters,
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White Smart Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
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Motion Sensor Switch with Time/Lux Adjustment AC100-240V for Office & Home Use
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5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching n
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Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen H
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