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Tyco XHS1-TY, UEI XHS1-UE, or UEI UEHM2AZ0 motion sensor battery installation

Learn how to install or replace batteries in the Tyco XHS1-TY, UEI XHS1-UE, or UEI UEHM2AZ0 motion sensor.

Did you know? This motion sensor may display as model MP-841 or H74470BA00-0004 in trouble alerts.

What you'll need

  • Xfinity Home Pro Protection, or Self Protection service
  • Tyco XHS1-TY, UEI XHS1-UE, or UEI UEHM2AZ0 motion sensor
  • Two CR123A batteries
  • Double-sided tape (optional)

Difficulty

Easy

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.

Purchase Batteries button

Call us at 1-800-XFINITY if you receive a low battery alert within 30 days of device installation.

How to install the batteries

If you subscribe to Xfinity Home Pro Protection:

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 the 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 call2recycle.org or call 1-800-8-BATTERY (1-800-8-228-8379) to find a recycling location near you.

Is this your motion sensor? Make sure that your motion sensor looks like the one in the image below. If it does, you're in the right place to find out how to install batteries in your motion sensor.

Front view of Tyco XHS1-TY motion sensor. The sensor has a large rectangular front edge. On the top and bottom of the unit, there are triangle-shaped protrusion. On the bottom triangle, the Xfinity logo is embossed. Just above the embossed logo, there's a small tab.

To install batteries:

  1. Grasp the small tab on the front of the motion sensor and pull up to slide it off the back cover.
    • 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.
      Step one of installing batteries in the motion sensor. Someone holds the sensor in their left hand. Their forefinger is on top of the unit, stabilizing it. Their thumb is pressed to the tab on the bottom of the unit in the front. The large rectangular plane slides upward toward the forefinger.

    • Take a look.
      • If batteries are already present, remove them by gently using your fingertip to pull one end of the battery up until the battery is loose and you can pull it free from the slot.
      • The battery compartment contains a diagram of the proper battery position with a symbol indicating which way the positive (+) end of the battery should be facing.
  2. Insert two CR-123A batteries into the battery slots positioning the positive (+) end of the batteries as shown in the battery diagram.
    Step two in installing the batteries in the motion sensor. Two battery slots are shown. The positive end is on the right-hand side. The battery is shown being put into the slot with the positive side, which has a bump, is placed facing right, so that it lines up with the positive mark in the slot. The second battery is placed in the same orientation, with the positive side facing to the right. The sensor is located on the left side of the bottom battery slot. It is a small rectangular shape with a smaller tamper inside of the rectangle.

    • Do not press down on the tamper (red square) when inserting the battery as this will trip the sensor.
  3. Reposition the guides on either side of the motion sensor with the track on the back cover. Slide the motion sensor down over the back cover until it snaps closed.
    Step three of installing batteries into the motion sensor. The front and back panels are shown from the side. The front panel is the one that has the batteries in it. The back panel has a small tab on the top that will slide into the front panel. When they are successfully put together, there is only a small diagonal line in the middle of the unit where the front and back panels are joined.

  4. When the batteries are inserted correctly, the red indicator light on the front of the sensor 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, Subscriber Portal, or the Xfinity Home app.
    • Test the sensor to confirm that it's working correctly.
      Step four of installing batteries into the motion sensor unit. The reassembled unit is shown from the front, so that the flat rectangular front panel is visible. A red indicator light in the center at the bottom of the rectangular plane is visible.

Additional information

Visit our Online Support Center to find common solutions.

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The easiest way to activate, manage, and troubleshoot your Xfinity experience is with the Xfinity app! Get 24/7 real-time support, pay your bill, view plan details, get outage updates, and more. Download the free Xfinity app, or scan the QR code with your smartphone.

Need additional support? Ask Xfinity Assistant.

 

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