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

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

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

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

Yolink Smart Wireless Door Sensor, APP Alerts Smart Door Window Sensor Smart Home Security System, 3 Packs

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

CPVAN Home Security System, Wireless Door Alarm with APP Alert, Remote, Door/Window Sensor, Base Station and Siren 8 Kit, for Kids Elders Safety, Fit House, Apartment. Works with Alexa

Honeywell Intrusion 5800MINI ONE ZONE DOOR/WINDOW TRANSMTTR

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