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.
-
Gebildet 3sets White Iron Door Recessed Wired Security Window Door Contact Sensor Alarmmagnetic Reed Switch,Magnet Near - Connect Circuit, Magnet Away - Break Circuit
Regular price $15.98 USDRegular priceSale price $15.98 USD -
MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch 2 Sets
Regular price $14.78 USDRegular priceSale price $14.78 USD -
Gebildet 6pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch, Magnet Near - Connect Circuit, Magnet Away - Break Circuit,Magnetic Switch(Cylindrical,Brown)
Regular price $19.98 USDRegular priceSale price $19.98 USD -
MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch 10 Sets
Regular price $45.18 USDRegular priceSale price $45.18 USD -
Wyze Climate Sensor (3-Pack) Wyze Sense Hub required
Regular price $89.96 USDRegular priceSale price $89.96 USD -
Gebildet 5pcs Door Light Switch 10mm AC250V 0.5A/AC125V 1A Normally Closed Momentary Fridge Light Press Button Switch
Regular price $15.98 USDRegular priceSale price $15.98 USD -
MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch 5 Sets
Regular price $27.18 USDRegular priceSale price $27.18 USD -
Wyze Home Security Core Kit: Hub, Keypad, Motion Sensor, Entry Sensors (x2); Compatible w/ Wyze Cam, Leak & Climate Sensors; 3 Mo. of 24/7 Professional Monitoring Service Incl., Subscription Required
Regular price $183.76 USDRegular priceSale price $183.76 USD -
Gebildet 6pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch, Magnet Near - Connect Circuit, Magnet Away - Break Circuit,Magnetic Switch(Cylindrical,White)
Regular price $19.98 USDRegular priceSale price $19.98 USD -
MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 10 pcs
Regular price $19.98 USDRegular priceSale price $19.98 USD -
Magnetic Reed Switch NC Surface Mount Wired Door Window Contact Sensor with Adhesive Paper for Home Security and Burglar Alarm Systems MC-38 5pcs
Regular price $17.98 USDRegular priceSale price $17.98 USD -
10 Pack Magnetic Contact Alarm, Window Door Open Sensor for Home & Pool Safety
Regular price $29.78 USDRegular priceSale price $29.78 USD -
MC-33C Normally Closed Recessed Window Door Contact Sensor, 2 Sets
Regular price $10.98 USDRegular priceSale price $10.98 USD -
Door Chime, 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 + 2 Plug-in Receivers
Regular price $93.98 USDRegular priceSale price $93.98 USD -
Door Chime,Wireless Door Chimes When Door Opens Entry Alarm for Home/Business/Office/Store with 800ft Range,55 Chimes and 5 Adjustable Volume Door Ringer Alert
Regular price $79.98 USDRegular priceSale price $79.98 USD -
Door Chime Alarm When Open for Kids Safety, Home and Business
Regular price $69.98 USDRegular priceSale price $69.98 USD