20M One Beam Infrared Sensor Detector Alarm Photoelectric Infrared Laser Sensor
$11.62
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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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SALE ✅ Lorex AK41TK-Z Window/Door Sensor Set - 1pc - *Missing Battery & Tape* ✅
$12.00$15.00
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WiFi Zigbee Door Window Sensor-Smart Life App Contact Monitor Alexa Yandex Black
$15.95
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Notion All in One Smart Home Monitoring System FIVE Sensors (5x) Bridge New
$22.00
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$45.00
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Ring Alarm Contact Sensor 2-Pack, Wireless Z-Wave Indoor Battery, White
$25.07
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$55.00
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Honeywell Home Honeywell Dt8050 Dual Tec Motion Detector 50 Foot
$129.38
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AT&T Recessed Door Window SENSORS 41922 NEW in Box Unused SW-ATT-RDW Lot of 3
$14.99
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WattStopper WS-250-W V2 PIR White Wall Switch Sensor 120/277VAC 60HZ 1000VA@120V
$14.99
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SALE New Door Window Sensor Zigbee Wireless Connection Door Sensor Work With APP Lot
$40.14$42.25
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SALE Door Window Sensor Zigbee Wireless APP Remote Control Work With HomeKit APP Lot
$164.63$173.29
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SECO-LARM ENFORCER 50FT REFLECTIVE PHOTOELECTRIC BEAM SENSOR BRAND NEW
$84.99
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SALE Tuya Wireless Water Sensor Alarm 90db Leak Alert Monitoring Leak Drip Alarm Lot
$29.54$31.09
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Weewooday 10 Pieces Am312 Pir Sensor Mini Pir Motion Sensor Infrared Human Body
$26.99
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10 Sets Pack of Wired Surface Mounted Alarm Magnetic Contacts Door Window Reed S
$23.99
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Universal Stainless Steel Wash Basin Bounce Drain Stopper Raise Up Drain Filter
$4.10
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10 Pack Small Spotlight Battery Operated LED Lights, Warm Multicolor Changing
$14.69
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Automatic Water Leak Detector with Sensors and Shut-off Valve
$78.59
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Securitron ASSA ABLOY DPS-M-BK Magnetic Door Position Switch Metal 39cc34
$29.00
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Water Leak Alarm Detector with Dual Probes, 120dB Sound, 33FT Cable, Industrial
$135.99
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Door Chime,Door Open Contact Sensor Alarm with 600 FT Range,5 Volume Levels,Door
$35.16
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SALE Door Alarms for Kids Safety, 120dB Loud Window Alarms for Home Security, Pool...
$33.59$41.99
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SALE Door Window Alarm, 120DB Window Alarms for Home Security, Door Chime for Stor...
$43.19$53.99
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SALE ✅ Lorex AM41TK-Z Bluetooth Motion Sensor only- White *Missing Stand & Battery* ✅
$16.00$20.00
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WiFi Door & Window Contact Sensor - Smart Life Tuya App Open/Closed Alarm
$8.94
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eMacros 1/2 Mile Supplemental Driveway Alarm Solar (Receiver Only has dents)
$31.00
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SALE ✅ Lorex AY41TR-Z Bluetooth Sensor Hub only- White - *Missing Wall Mount* ✅
$20.00$25.00
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SALE ✅ Lorex Smart Sensor Starter Kit with 3 Sensors - White (AY41TR-KTK2-MTK1) ✅
$28.00$35.00
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WiFi Zigbee Door Window Sensor - Smart Life App Contact Monitor Alexa Yandex
$15.95
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10 Sets Pack of Wired Surface Mounted Alarm Magnetic Contacts Door Window Reed S
$23.77
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Motion Activated Outdoor Light 2 Pack 3 Modes
$107.99
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Motion Activated Outdoor Light 2 Pack 3 Modes
$107.99
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Rechargeable Security Light 2 Pack 10000mAh
$107.99
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Security Light Motion Sensor 10000mAh 2 Pack
$102.99
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Motion Security Light 2 Pack 10000mAh 3 Modes
$107.99
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Motion Sensor Lights 2 Pack 10000mAh 3 Modes
$107.99
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Automatic Water Leak Detector with Sensors and Shut-off Valve
$78.59
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BLNAN RGB Led Flush Mount Ceiling Light with 13 Inch, ( Red, Green, Blue)
$61.72
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SUNVIE 2 Pack Smart Floor Can Light 5W RGBW Color Changing 2 Pack, Black
$71.23
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MAYNA Farmhouse Ceiling Light, 2-Light Rustic Flush Mount Light Brown
$57.11
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Zoiinet Wireless Motion Sensor Outlet, 15A/1500W, Adjustable Sensing Mode, 260FT
$38.99
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NEW HONEYWELL MAGNETIC ALARM CONTACT 945T-WH WHITE LOT OF 3
$28.00
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NEW HONEYWELL MAGNETIC ALARM CONTACT 951WG-WH WHITE LOT OF 23
$200.00
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SALE Dependable Solar Motion Sensor Driveway Alarm
$93.59$116.99
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Cooper Wiring Devices White Occupancy Sensor Dimmer 600W OS106U-W White Ivory
$19.97
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Ademco Vista 10SE Wired Security Alarm Panel
$49.99
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BS010L DC 12V to 30V 3A Mini Pir Motion Sensor Switch,Occupancy Sensor Switch...
$16.99
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