Best Door Alarms

Ring Alarm 8-Piece Kit (2nd Gen) - home security system with 30-day free Ring Protect Plus subscription

Ring Alarm Outdoor Contact Sensor

SimpliSafe 8 Piece Wireless Home Security System - Optional 24/7 Professional Monitoring - No Contract - Compatible with Alexa and Google Assistant, White

SECRUI Door Chime, Easy Installation Wireless Door Sensor Chime with 500ft Range, 52 Chimes, 5 Adjustable Volumes, 2 Sensors and 1 Plug-in Receiver, Black

Window Alarm Door Alarms for Kids Safety, VOXON Wireless Door Alarm for Home Security Personal Security Window Alarms Sensor Burglar Door Alarm for Pool, Cars, Sheds, Caravans DIY Kit Pack of 2

GE Personal Security Window/Door Alarm, 5-Pack, DIY Home Protection, Burglar Alert, Magnetic Sensor, Off/Chime/Alarm, Easy Installation, Ideal for Home, Garage, Apartment, Dorm, RV and Office, 45987

Safety Technology International, Inc. STI-6402 105 dB Exit Stopper® Multifunction Door Alarm for Double Doors with on/Off Switch and 9 Volt Battery

Honeywell Ademco 5816WMWH White Door/Window Transmitter w/ Magnet

Safety Technology International, Inc. STI-6400 Exit Stopper Multifunction Door Alarm, Helps Prevent Unauthorized Exits or Entries Through Emergency Doors

Philips Personal Security Window/Door Alarm, 2-Pack, DIY Protection, Burglar Alert, Wireless, Magnetic Sensor, Easy Installation, Ideal for Home, Garage, Apartment, Dorm, RV and Office, LRM3420W/27