How to Keep Older Wireless Door/Window Sensors Functioning Correctly

In addition to common battery and communication issues, which you can learn more about here, extra care can be taken to potentially extend the life of older door/window sensors.

For your safety, please remove the battery from the sensor before proceeding with any of the following tips. Please do not follow these steps for wired sensors.

  • Sensor battery contact points, where the battery touches metal or a metal spring inside the sensor, can be gently cleaned using alcohol and a cloth. This can help reverse an unexplained low battery signal, even when fresh batteries are being used.
  • If there has been damage by corrosive materials or rust, the contact points can be carefully scraped with a flathead screwdriver to remove minor buildup, but this may indicate that a replacement is near due.
  • Many sensors have a spring inside for the tamper switch. If it has fallen off, there is a chance that a spring from a ballpoint pen can be used as a temporary replacement. Press the spring 5-10 times, and stretch the spring if needed, to ensure the cover will press it down and close completely.
  • Make sure the cover securely snaps together when closed.

If the problem persists, please text a Support Representative at 469.513.8685 7 days a week, 8 am–8 pm CT. Please note that basic troubleshooting may be repeated before we can determine if a replacement is necessary.