I've only open and installed one so far, but the one that I've already open is exactly what I expected PERFECT. Its loud which is great since my bedroom is kinda far from the back door. A plus is I can set the alarm from my bedroom. The installment was very easy. Batties was already in the alarm ready to go remotes were already programmed which was a plus.
Wireless Smart Siren Alarm For Home Security With 110 DB Volume, Panic Alert, Remote Control, And Compatibility With Alexa, Google, Home Assistant, IFTTT - Requires Hub
13 Review
Enhance Your CCTV Security With BlueFishCam'S Waterproof Wide Angle Lens Camera
29 Review
UHPPOTE Fire Control Expansion Panel Board For Access Controller With Enhanced Alarm Output
13 Review