Learn how to install or replace a battery in the Sercomm SZ-DWS04 Door/Window Sensor.
What you'll need
- Xfinity Home
- Sercomm SZ-DWS04 Door/Window Sensor
- One CR2032 battery
- Double-sided tape (optional)
Difficulty
Medium
Do you need a battery?
Make sure you have batteries before you proceed. Visit your nearest retail store that sells batteries or click the button below to order your replacement battery kit.
Call us at 1-800-xfinity if you receive a low battery alert within 30 days of device installation.
How to install the battery
Before proceeding, make sure that your system is disarmed. Working on devices while the system is armed can generate false alarms.
Did you know? You may want to have some double-sided tape on hand if you need to remove your Sensor from the wall to install a battery. Use the tape to reattach your Sensor if its existing adhesive fails to hold it in place.
Help protect our environment: Please properly recycle your discarded batteries. For your convenience, batteries are accepted for recycling at various locations. Check www.call2recycle.org or call 1-800-8-Battery (1-800-8-228-8379) to find a recycling location near you.
Is this your sensor? Make sure that your Sensor looks like the one in the image below. If it does, you're in the right place to find out how to install a battery in your Sensor.
Did you see? There is a mark located to the side of the Sensor (see arrow above) that shows the recommended side to use when matching up the Sensor with the magnet. The same mark is found on the magnet for easy alignment.
- Locate the slot on the top of the Sensor and place your fingertip into the slot opening.
Where's the slot? If you don't see the slot, make sure to check the top and bottom of the Sensor. The slot location is dependent on the positioning of the Sensor during installation.
- Move your fingertip down while holding the front of the Sensor to pry the cover away from the Sensor body. After removing the cover, you may receive a tamper alert from your system. the tamper alert warns you when the cover of your device is open and will clear once the battery is replaced and the cover is reattached.
Be sure not to press down on the tamper (red square) when inserting the battery as this will reset the Sensor to the factory settings.
Take a Look. If a battery is already present, remove it by using your fingertip to gently pull one end of the battery up until the battery is loose and you can pull it free from the slot. - Insert the battery into the battery compartment with the positive (+) side facing up.
- When the battery is inserted correctly, a small green light will light up.
- If you're replacing the battery, confirm that the low battery alert has resolved and the Sensor appears on your list of connected devices in your touchscreen or the Xfinity Home app.
- Align the small slots on the Sensor's body with the small tabs on the cover and gently press the cover against the Sensor until it snaps into place.
- If the cover does not snap easily into place, you may have it upside down.
- If you're replacing the battery, test the Sensor to confirm that it is working correctly.
