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.
-
Personal Security Window & Door Alarm Bell (3 Pack-S)
Regular price $17.08 USDRegular priceSale price $17.08 USD -
VOXON Door Alarms for Kids Safety - Window Alarms for Personal Home Security - 2 in 1 Chime/Alarm | 3-Level Volume Control - Burglar Door Sensor Alarm for Pool House Rooms Garage RVs - 2 Pack
Regular price $25.98 USDRegular priceSale price $25.98 USD -
Door Window Alarm Sensors, 3 Pack, 125dB, Volume Control
Regular price $43.18 USDRegular priceSale price $43.18 USD -
MC-33C NC Magnetic Reed Switch Recessed Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Systems (4 Sets)
Regular price $25.98 USDRegular priceSale price $25.98 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 10pcs)
Regular price $57.98 USDRegular priceSale price $57.98 USD -
Window Alarm System 4-Pack - Ultra-Loud 120dB Alarms with Advanced Vibration Sensors - Window Security Alarms for Glass Break Detection - Features Low Battery LED Indicator
Regular price $55.98 USDRegular priceSale price $55.98 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 5pcs)
Regular price $31.18 USDRegular priceSale price $31.18 USD -
Personal Security Window & Door Alarm Bell (20 Pack)
Regular price $49.98 USDRegular priceSale price $49.98 USD -
Door Window Alarm, Window Alarms for Home Security, 120DB Loud Door Chime for Store, Ideal for Home, Garage, Apartment, RV(10 Pack)
Regular price $79.98 USDRegular priceSale price $79.98 USD -
Replacement Tape Compatible for GE Personal Security Window and Door Alarm
Regular price $17.94 USDRegular priceSale price $17.94 USD -
Gebildet 4sets Black Magnetic Switch Wiring NO/NC Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System
Regular price $25.98 USDRegular priceSale price $25.98 USD -
Qolsys DW Mini-S (2-Pack) Wireless Contact Sensor for Windows & Doors - S-Line Encrypted 319.5 MHz - Window Alarm Sensor for Smart Home - Create Personalized Notifications & Rules
Regular price $109.94 USDRegular priceSale price $109.94 USD -
Personal Security Window & Door Alarm Bell (12 Pack)
Regular price $35.98 USDRegular priceSale price $35.98 USD -
10 Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, for DC 5V 12V 24V Light
Regular price $59.98 USDRegular priceSale price $59.98 USD -
5 Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, for DC 5V 12V 24V Light
Regular price $33.18 USDRegular priceSale price $33.18 USD -
Window and Door Alarm, 120 DB Black Window Alarm for Home Security, Door Chime for Store, Suitable for Pool, Homes, Offices, Cabinets (10 Pack)
Regular price $79.98 USDRegular priceSale price $79.98 USD