How to change an Infinite Prime alarm sensor battery

How to replace an Infinite Prime sensor battery

Once you've got a replacement battery to hand, changing it is a six-step job.

1. 1

   Locate the sensor

   Find the specific sensor that's showing a low-battery warning - usually flagged on your keypad or in the panel's fault log.

2. 2

   Disarm the tamper alarm first

   Opening the sensor casing triggers a local tamper alarm unless you disarm or disable it first, using your code or fob before you start.

3. 3

   Insert a flat-head screwdriver into the lip

   Use a large flat-head screwdriver in the sensor's lip - the small gap at the edge of the casing - not the slot on the bottom.

4. 4

   Gently twist to pry open the case

   A gentle twist of the screwdriver in the lip should pop the case open. Take it slowly rather than forcing it.

5. 5

   Swap the battery or batteries

   Pull out the old battery (or batteries) and insert the new ones the same way round. Some Infinite Prime sensors take one battery, others two, for extended operation time.

6. 6

   Close the cover in the right order

   Slot the top of the cover back in first, then clip the bottom shut - doing it the other way round can stop the case seating properly.