Make sure your battery that you currently have says cr123a.
Battery for adt door sensor.
It is the battery for the standard door and window sensor but not for the custom or smaller ones.
To determine if any of the sensors are in need of new batteries simply go to your security keypad.
For the best deals on batteries click here.
Cr123a 3v 123 lithium battery girapow 123a 1600mah batteries with ptc protected for flashlight smoke detector alarm system door sensor 12 count 4 4 out of 5 stars 125 17 99 17.
They usually last around 5 10 years.
The easiest way to know is a zone trouble indicator will appear on your alarm keypad and a sensor trouble message may appear in your adt pulse app.
Reference your alarm s manual for the trouble codes and how to decipher them.
A door and window contact requires 1 cr123 3 volt battery in some systems the door and window contact will be a very slim device and will contain a single cr2032 battery.
This battery can often be purchased at your local hardware mass retailer or battery store.
When you get these messages you ll want to replace your batteries as soon as possible.
We also sell the required 9v cr123a aa aaa cr2 and coin cell batteries needed to power each and every component within your adt alarm system.