Best First Alert Door Alarms

Ring Alarm Contact Sensor (2nd Generation)

Shed Alarm Home Security Wireless | Shed Garage Lockup Summer House | Easy Self Install Waterproof Vibration Tech 113db Exceptionally Loud

TECKNET Wireless Door and Window Open Sensor Alarm Chime, 1000Ft Operating Range 61 Chimes Adjustable Volume with Mute Mode LED Indicators Door Open Alert, Door Alarm Sensor for Home Store Office

VOXON Wireless Door and Window Alarm Sensor 2 Pack 2 Modes Magnetic Window Door Burglar Alarm with 120dB Loud for Kids Safety Home Shop Security

Door Window Alarm 2 Pack Noopel Home Security Ultra-Slim Wireless Magnetic Sensor Burglar Anti-theft 120DB Alarm with Batteries included - DIY EASY to Install

YISEELE Alarm System, House Alarms Security System, WiFi Door Alarm with APP Alert and Calling Alarms, Wireless 9-Piece kit: Alarm Hub, Door/Window Sensors, Remotes, Work with Alexa and Google Home

Motion Sensor Door Chime Alarm,BeiLan Wireless Home Security Driveway Doorbell,Visitor Business Door Bell Chime with 1 Plug-in Receiver and 1 PIR Motion Sensor Detector Weatherproof Alert Kit

Defender Ultra Slim Vibration Alarm 2 Pack - Window Alert Alarm Sensor Smash Glass Siren 130dB - Police Recognised Standards

Panamalar Door Window Sensor Wifi Door Alarm System, Detects Opened and Closed Front Back Garage Door, Sends Alerts, Alexa Google Home Compatible, Smart Auto Switch on Lights Accessory

CPVAN Home Alarm System, WiFi PIR Motion Sensor Alarm, Wireless DIY Smart Door/Window Alarm for Home Security with Phone APP Alert 9 Pieces Kit (Indoor PIR Alarm Hub, 6 Door Sensors, 2 Remotes), CP2W.