SALE 2x Sentrol Surface Mount Magnetic Contact Sensor Alarm Reed Switch Gray Lot
$11.24$14.99
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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 
New! Vivint Smart Water Sensor x2 set (Flood Sensor) VS-FLD001-345
$80.00
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Ring Alarm Motion Detector 2nd Gen 5AT2S9 Z-Wave S2 Security System Sensor TESTE
$12.49
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Z-Wave Plus Smart Door Sensor for Home Security with Magnetic Contact System
$75.89
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SALE 2pcs MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switches White
$12.68$13.35
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Honeywell/Resideo FG-1625 Glassbreak Bundle (3)
$130.00
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Ademco 4142BLK Terminal Block Kit for Home Security System Black NEW
$20.00
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WINK MOTION SENSOR | WNK-MOT1P | SMART HOME HUB COMPATIBLE | WHITE
$17.99
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Twist Lock Photocell 8 Pack Dusk To Dawn Sensor Switch
$91.99
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Dusk Till Dawn Photocell Sensor 8 Pack Adjustable Swivel
$91.99
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Outdoor Dusk To Dawn Photocell Light Sensor 8 Pack Conduit
$91.99
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Outdoor Dusk To Dawn Photocell Light Sensor 8 Pack Conduit
$91.99
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Photocell Light Sensor 8 Pack Outdoor Dusk To Dawn Swivel
$91.99
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Hubbell Wiring Devices WS1277W Wall Switch PIR Sensor w/Night Light, White 120V
$27.00
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SALE Qolsys QS1231-840 IQ Wireless PIR Motion Sensor, Interlogix Compatible Security
$25.00$29.00
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Photoelectric Sensor 8 Pack Outdoor Dusk To Dawn Swivel Mount
$91.99
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Photocell Light Sensor 8 Pack Outdoor Dusk To Dawn Swivel
$75.25
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Outdoor Dusk To Dawn Photocell Light Sensor 8 Pack Conduit
$91.99
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Photoelectric Sensor 8 Pack Outdoor Dusk To Dawn Swivel Mount
$91.99
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Photocell Light Sensor 8 Pack Outdoor Dusk To Dawn Swivel
$91.99
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SALE Honeywell SiXCTA (Each) Two-Way Wireless Door / Window Sensor for use with Lyric
$15.00$15.19
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Photoelectric Sensor 8 Pack Outdoor Dusk To Dawn Swivel Mount
$91.99
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SALE Motion Sensor Light Switch, Occupancy & Vacancy Model Motion Activated Wall S...
$20.66$22.95
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Honeywell Dual TEC DT-900 Motion Sensor
$169.00
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Wireless Outdoor Perimeter Alarm 1/4 Mile Motion Sensor 4pk
$159.99
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Wireless Driveway Alarm with Motion Sensor, 1/2 Mile Range for Property Security
$87.89
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WATTSTOPPER LMDW-102-W DLM Digital Dual Tech Wall Sensor, 2-button, White, NEW
$125.00
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Ride Leveling Height Sensor Compatible with 1998-2014 Mercedes-Benz
$73.64
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Photoelectric Sensor 8 Pack Outdoor Dusk To Dawn Swivel Mount
$91.99
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SALE Motion Detector Alarm System for Home Security
$77.24$102.99
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Ring Glass Break Sensor Newest Model Instant Notifications White 7AFYA4 Sensors
$59.99
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SALE Aqara Motion Sensor P1 Requires AQARA HUB 5-Year Battery Life Pack Of 2
$45.00$149.99
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Photoelectric Sensor 8 Pack Outdoor Dusk To Dawn Swivel Mount
$91.99
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Photoelectric Sensor 8 Pack Outdoor Dusk To Dawn Swivel Mount
$91.99
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Safety Technology International, Inc. -9621 Motion Detector Damage Stopper Steel
$41.67
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Outdoor Dusk To Dawn Photocell Light Sensor 8 Pack Conduit
$91.99
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Photocell Light Sensor 8 Pack Outdoor Dusk To Dawn Swivel
$75.25
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SALE Ring Mailbox Sensor, Up to 3 Years of Battery Life – Black BLACK
$47.14$50.69
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SALE LUMLLSAJI 2 Pack LED Flush Mount Ceiling Light, 24W 12Inch-2 Pack, White
$41.87$45.02
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AC 85-265V Motion Infrared Sensor Switch For Outdoor Use 180° Detection Range
$12.23
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Auto-Sensing Motion Switch AC100-240V ABS Flame-Retardant for LED Lamps 200W
$12.36
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Smart WiFi Temperature Humidity Sensor Meter LCD Hygrometer Thermometer Monitor
$19.89
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New 110db Infrared Motion Sensor Home Garage Alert Security System
$18.94
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ABS Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$10.41
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AC 110V 220V PIR Infrared Body Motion Sensor Detector Control Switch Light Lamp
$10.22
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Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip b
$11.15
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Wall Mounted Automatic Door 24.125Ghz Microwave Motion Sensor,Autodoor Sensors
$19.52
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Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen
$10.22
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