SALE Zigbee Motion Sensor Hub Required - Echo Devices Compatible
$125.24$166.99
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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 
Globe Electric 44479 Teagan 1-Light Outdoor (Pack of 1), Bronze,
$65.19
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WiFi Smart Motion Sensor: Wireless PIR Motion Detector for Home Security, Inf...
$18.93
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QWORK MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm R
$9.84
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1Pc Home Water Leak Alarm Flood Level Overflow Detector Sensor Security Alert
$10.18
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Driveway Alarm Motion Sensor - Driveway Alarms Wireless Outside Weatherproof ...
$58.31
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Entry Sensor (Pack of 4) - Window and Door Protection - Compatible with the Hom
$99.99
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Dusk to Dawn/Day Night Sensor, 1PK Water Resistant Photocell Sensor for Outdoor
$16.99
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Presence Sensor FP300 Wireless 5-In-1 Motion Sensor with Mmwave, PIR, Light, Tem
$90.99
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E-931-S35RRQ Enforcer Indoor/Outdoor Wall Mounted Photoelectric Beam Sensor with
$99.99
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Outdoor Motion Detection Activated Light Control for Medium Base up to 150W Bulb
$14.99
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Zigbee Vibration Sensor, Wireless Mini Glass Break Detector for Alarm System, Ho
$34.99
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New Winland Waterbug Water Detection Sensor W-S-S WB-800 and all EnviroAlert.
$50.00
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GE 45115 Wireless Magnetic Window Alarms 2 Pack
$18.99
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24.125GHz Human Inductive Motion Microwave Radar Sensor For Automatic Door
$19.10
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Smart Vibration Sensor with 110Db Alarm,Zigbee Hub Required,Adjustable Sensitivi
$36.99
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THIRDREALITY Zigbee Motion Sensor, Pet Friendly, Compatible with Home Assistant,
$27.80
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Contractor Select CMR Series 360° Small Motion Dual Technology Standard Range Ce
$60.11
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Lot of 3 GE Window or Door Alarm 56789 120dB New Factory Sealed
$12.00
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GOLDHILL 10.5" Outdoor Semi Flush Mount 2 Pack Flush, Bronze with Gold
$85.35
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YoLink DIY Automatic Water Leak Detection & ShutOff Starter Kit, Valve Operat...
$518.96
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500Ft Range Security Sensors & Alarms, 2 Count
$46.63
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Ultimate Flood Defense: 3-Pack Water Leak Sensors with Real-Time Notifications
$91.99
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6 PCS WIRELESS Home Window Door Burglar Security ALARM System Magnetic Sensor
$9.90
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Automatic Water Leak Detector with Sensors and Shut-off Valve
$78.60
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Expandable Motion Sensor Door Alarm 360° Rotatable Sensor 17 Tones Entry Alert
$21.19
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SALE U49008 VISONIC DoorWindow Contact MC302E PG2 9150 MHz G1N
$16.08$17.87
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SALE U49013 VISONIC DoorWindow Contact MC302E PG2 9150 MHz G1N
$16.08$17.87
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SALE U49010 VISONIC DoorWindow Contact MC302E PG2 9150 MHz G1N
$16.08$17.87
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Mailbox Alarm, Wireless, Battery Powered, White, 500Ft Range, LED Flash
$40.94
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SALE VISONIC DoorWindow Contact MC302E PG2 9150 MHz G1N
$16.08$17.87
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SALE U49011 VISONIC DoorWindow Contact MC302E PG2 9150 MHz G1N
$16.08$17.87
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GE SmartHome Parking Alert Ultrasonic Sensor General Electric Model 45104 Garage
$28.46
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Compact 110 dB Water Alarm w/360° Sensing Technology (BW-WA360)
$30.12
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Optex Oam-Explorer US Motion/Presence Safety Door Sensor Replacement
$236.25
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Water Leak Detector Sensor Alarm: Home Water Flooding Monitor Smart Sink Over...
$33.05
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Ring Alarm Contact Sensor Riser (2Nd Gen) | Elevates Sensor for Crown Molding &
$14.90
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Water Alarms Leak Detector for Home Basements, RV Water Heater, Sump Pump Ove...
$19.77
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SALE Solar Driveway Alarm 1/2 Mile Long Range Wireless Outdoor Motion Sensor Receiver
$94.49$104.99
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SALE NEW SimpliSafe Home Security Glassbreak Sensor GB3
$24.95$25.99
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Disc Golf Basket Sensor Light | Automatic Sensor Lighting + Automatic Color-Chan
$74.99
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Garage Door for 41A5034, Garage Door for Craftsman Chamberlain Liftmaster Gar...
$33.33
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6pcs Defiant Wireless Home Security Door/Window Alarm Open Package E43
$30.00
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Seco-Larm Enforcer Twin Photobeam Detector, 90-190 Ft. Range (E-960-D90)
$84.87
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Long Range Wireless Driveway Alarm - 1/2 Mile Motion Sensor & Detector Kit - DIY
$129.99
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Lamson Dimango Flashing Entrance Alert For Wireless Security 2002
$25.99
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Wireless Motion Sensor Alarm Home Security Detector System With Remote For Garag
$10.45
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3-Pack 120 dB Loud Door/Window Alarms - Ideal for Kids & Dementia Patients
$28.99
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