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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6-Pack Magnetic Contact Alarm, Window Door Open Sensor for Home & Pool Safety
Regular price $19.98 USDRegular priceSale price $19.98 USD -
Door Chime, METAK Wireless Door Open Contact Sensor Alarm with 500 FT Range, 58 Chimes and 5 Volume Levels for Business/Store/Home/Office When Entering, 3 Transmitter + 2 Plug-in Receiver
Regular price $87.98 USDRegular priceSale price $87.98 USD -
Magnetic Reed Switch NC NO COM Surface Mount Wired Door Window Contact Sensor with Adhesive Paper for Home Security and Burglar Alarm Systems MC-38 5pcs
Regular price $29.98 USDRegular priceSale price $29.98 USD -
Door Chime Alarm When Open for Kids Safety, Home and Business
Regular price $99.98 USDRegular priceSale price $99.98 USD -
2 Pack Window & Pool Alarm: Home & Kids Safety - Door Open Sensor
Regular price $13.76 USDRegular priceSale price $13.76 USD -
Door Chime, METAK Wireless Door Open Contact Sensor Alarm with 500 FT Range, 58 Chimes and 5 Volume Levels for Business/Store/Home/Office When Entering, 3 Transmitter + 1 Plug-in Receiver
Regular price $71.98 USDRegular priceSale price $71.98 USD -
Door Chime Alarm When Open for Kids Safety, Home and Business
Regular price $79.98 USDRegular priceSale price $79.98 USD -
Magnetic Reed Switch NO Surface Mount Wired Door Window Contact Sensor with Adhesive Paper for Home Security and Burglar Alarm Systems MC-38 5pcs
Regular price $27.98 USDRegular priceSale price $27.98 USD -
4 Pack Magnetic Contact Alarm, Window Door Open Sensor for Home & Pool Safety
Regular price $17.76 USDRegular priceSale price $17.76 USD -
Wireless Door Chime, Door Entry Sensor Alarm for Home and Business
Regular price $91.98 USDRegular priceSale price $91.98 USD -
Door Chime, METAK Wireless Door Open Contact Sensor Alarm with 500 FT Range, 58 Chimes and 5 Volume Levels for Business/Store/Home/Office When Entering, 4 Transmitters + 1 Plug-in Receiver
Regular price $79.98 USDRegular priceSale price $79.98 USD -
10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security
Regular price $27.98 USDRegular priceSale price $27.98 USD -
Ring Alarm Magnet Riser | 5 Pack Set with 3M Adhesive - Easy Mount to Any Doorway, Window, and Entryway | Ring Sensor/Magnet Not Included (1/4 inch)
Regular price $35.98 USDRegular priceSale price $35.98 USD -
Entry Sensor (Pack of 6) - Window and Door Protection - Compatible with tolviviov Home Security System
Regular price $109.58 USDRegular priceSale price $109.58 USD -
RC-35 NC/NO Recessed Wired Magnetic Reed Switch, Door Window Contact Sensor for Home Burglar Alarm Systems White, 10 Sets
Regular price $67.98 USDRegular priceSale price $67.98 USD -
Ring Alarm Magnet Riser | 5 Pack Set with 3M Adhesive - Easy Mount to Any Doorway, Window, and Entryway | Ring Sensor/Magnet Not Included (1/2 inch)
Regular price $35.98 USDRegular priceSale price $35.98 USD