Best Door Alarms

Ring Alarm 8-Piece Kit (newest model), Home or business security system with optional 24/7 professional monitoring

Ring Alarm Outdoor Contact Sensor

YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant

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

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

Zooz 800 Series Z-Wave Long Range Open|Close XS Sensor ZSE41 800LR for Door, Window, and Gate Monitoring. Hub required (sold separately). Compatible with SmartThings, Hubitat, and Ring Alarm.

GE Personal Security Window and Door Alarm, 6 Pack, DIY Protection, Burglar Alert, Wireless, Magnetic Sensor, Off/Chime/Alarm, Easy Installation, Ideal for Home, Garage, Apartment and More, 49721

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