Battery life for entry sensors???

when a battery starts going the system will notify you via a message on the keypad it needs to be replaced. Entry sensors last last many years but I proactively replaced all of mine at 3.  The battery is replaced, not the sensor.

Here's a link for SS3 in the support center


https://support.simplisafe.com/hc/en-us/articles/360023810112-How-long-do-the-batteries-last-

Hope this helps

Many thanks for info and link!