Overview
The PROSIXGB is a wireless glassbreak sensor designed to detect the sound frequency of breaking glass. If the battery becomes low, your alarm system will display a low battery alert. Replacing the battery is simple and can usually be completed in just a few minutes.
Before You Begin
Before replacing the battery, please call us at (718) 360-9191 so we can place your alarm system in Test Mode. This will help prevent unnecessary alarm signals from being sent while the battery is being replaced.
Where to Purchase the Battery
A CR123A 3V lithium battery is commonly available at:
- Hardware stores
- Home improvement stores
- Electronics retailers
- Online marketplaces such as Amazon
We recommend using a quality lithium battery from a reputable manufacturer.
What You'll Need
- One new CR123A 3V lithium battery

- Small flat-head screwdriver (if needed)
Step 1 – Locate the Glassbreak Sensor
The glassbreak sensor is typically mounted:
- On a wall
- On the ceiling
- Facing nearby windows or glass doors

Step 2 – Remove the Cover
- Locate the release tab on the sensor.
- Gently press the tab.
- Carefully remove the front cover.

Step 3 – Remove the Old Battery
- Carefully remove the old battery.
- Wait approximately 10 seconds before installing the new battery.
Step 4 – Install the New Battery
- Insert the new CR123A 3V lithium battery.
- Ensure the battery polarity (+/-) matches the markings inside the sensor.
- Do not force the battery into place.
Step 5 – Reinstall the Cover
Snap the cover back into place until it clicks securely.
Step 6 – Verify the Sensor
Allow several minutes for the sensor to reconnect to the alarm system.
Once you've completed the battery replacement, please let us know so we can verify that the sensor is communicating properly.
For reference, see the video below.