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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2 Pack Window Door Alarm When Opened for Kids/Dementia Safety/Home Security
Regular price $43.98 USDRegular priceSale price $43.98 USD -
Personal Security Window & Door Alarm Bell (Black 10Pack)
Regular price $29.98 USDRegular priceSale price $29.98 USD -
ADT Blu Door/Window Sensor, 4-Pack, Only Compatible with ADT Blu Systems
Regular price $119.98 USDRegular priceSale price $119.98 USD -
WiFi Door Sensor Chime, Smart Door Open Alert Window Sensor
Regular price $69.96 USDRegular priceSale price $69.96 USD -
UltraPro Personal Security Window and Door Alarm, 4 Pack, Wireless Chime
Regular price $46.36 USDRegular priceSale price $46.36 USD -
Personal Security Window & Door Alarm Bell (24 Pack)
Regular price $55.98 USDRegular priceSale price $55.98 USD -
Aeotec ZWA012 Z-Wave Plus v2 Door / Window Sensor 7 Pro, Gen7
Regular price $95.98 USDRegular priceSale price $95.98 USD -
Door Sensor Cover Compatible with Ring (Color Matching), Snap-On Design for Ring 1st/2nd Gen Sensors, Strong Protective to Hide White Sensor, Upgrade Home Security Aesthetics - Brown
Regular price $15.16 USDRegular priceSale price $15.16 USD -
UltraPro Personal Security Window and Door Alarm, 2 Pack, Wireless Chime
Regular price $25.76 USDRegular priceSale price $25.76 USD -
Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch Black, Magnetic Door Sensor, Normally Closed Magnetic Switch
Regular price $19.98 USDRegular priceSale price $19.98 USD -
TECKNET Door Alarms for Kids Safety, Door Alarms When Opened, Two-Way Door and Window Alarm Door Alarm for Home Security, 2-in-1 Alarm & Chime, 3-Level Volume Control, Door Sensor Alarm (3 Pack)
Regular price $29.98 USDRegular priceSale price $29.98 USD -
Aeotec Door Window Sensor 7, Z-Wave Plus Enabled Zwave Hub Required, Gen7, White (Door/Window Sensor 7)
Regular price $75.98 USDRegular priceSale price $75.98 USD -
Window & Door Alarm When Opened 5-Pack for Kids Safety/Home Security, White
Regular price $63.98 USDRegular priceSale price $63.98 USD -
Magnetic Reed Switch Normally Open and Normally Closed NC NO Magnetic Proximity Switch for Door Alarm, Window Safety, DC 5V 12V 24V Light GPS Other Equipment Reed Switch (White, Pack of 2pcs)
Regular price $18.78 USDRegular priceSale price $18.78 USD -
PILSAMAS Wi-Fi Smart Door Alarm, Instant LED ID Display Caregiver Pager
Regular price $87.92 USDRegular priceSale price $87.92 USD -
2 Pack Door Window Alarm,90dB Wireless Sensor for Home,Office&Kids Safety
Regular price $13.98 USDRegular priceSale price $13.98 USD