Security2020 WC180 Wireless Door Chime with Flashing Strobe Light by Security2020

One of them works fine. I purchased two alarms to ring in two different locations but the other one worked a couple of times and then stopped. I'm in the process now of returning it in order to get another one.

Worked perfectly out of the boxEasy to install and fast delivery

Worked great. By friend that is deaf can now tell when someone is at the door

Wireless