Collection: Door & Window Alarms
Explore alarms and contact sensors that indicate when doors or windows open. Check mounting requirements, sensor spacing, power sources, and hub compatibility before purchasing.
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Wyze Leak Sensor (3 Pack) and Single Probe - Wyze Sense Hub Required
Regular price $89.96 USDRegular priceSale price $89.96 USD -
Metal Garage Door Bracket for Ring Contact Sensor 2nd Gen
Regular price $17.98 USDRegular priceSale price $17.98 USD -
10PCS Recessed Wired Door Contact Sensor, NC, ABS White, RC-36
Regular price $27.38 USDRegular priceSale price $27.38 USD -
RC-36 NC+NO Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown - (4 Sets)
Regular price $37.98 USDRegular priceSale price $37.98 USD -
Wyze Home Security System Entry Sensor - Window and Door Entry Protection (3-Pack) Wyze Sense Hub required
Regular price $99.96 USDRegular priceSale price $99.96 USD -
Honeywell Ademco 5816WMWH White Door/Window Transmitter w/Magnet
Regular price $57.60 USDRegular priceSale price $57.60 USD -
5PCS Recessed Wired Door Contact Sensor, NC, ABS White, RC-35
Regular price $19.38 USDRegular priceSale price $19.38 USD -
Wyze Leak Sensor Probe 2-Pack (Sense Hub required, Accessory to Wyze Home Monitoring System)
Regular price $31.96 USDRegular priceSale price $31.96 USD -
Magnetic Reed Switch Surface Mount, NC, 2 Wire, ABS, MC-38
Regular price $11.98 USDRegular priceSale price $11.98 USD -
5 Sets Magnetic Door Switch RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic White Normal Closure(NC)
Regular price $17.98 USDRegular priceSale price $17.98 USD -
Honeywell 5816 Wireless Transmitter
Regular price $51.80 USDRegular priceSale price $51.80 USD -
5PCS Recessed Wired Door Contact Sensor, NC, ABS Brown, RC-33
Regular price $17.98 USDRegular priceSale price $17.98 USD -
2GIG 2GIG-DW100-345 Wireless Door/Window Contact Sensor, 345MHz
Regular price $58.00 USDRegular priceSale price $58.00 USD -
2 Sets MC-31B Magnetic Reed Switch Wired Surface Mount Normally Open Closed NC NO Door Contact Sensor Alarm Magnetic Door Switch Black
Regular price $16.78 USDRegular priceSale price $16.78 USD -
Ring Alarm Contact Sensor Riser (2nd Gen) | Elevates Sensor for Crown Molding & Trim | Easy No-Tools Installation | Works with Ring Contact Sensors
Regular price $19.98 USDRegular priceSale price $19.98 USD -
2PCS Recessed Wired Door Contact Sensor, NC, ABS Brown, RC-33
Regular price $13.78 USDRegular priceSale price $13.78 USD