User's Manual
Alarmster WFH User Manual – EN Rev. 01 © 2020 Bridgesecure Technologies Inc. Page 8 of 10
Battery Replacement
Your Alarmster WFH is designed to operate for up to 10 years with new alkaline
batteries. However, audible and wireless alarms or frequent use of the Test button can
reduce battery life.
If the batteries are low Alarmster WFH will make a short blip at 8-second intervals and
send a wireless signal to alert your contacts for which the System Health category is
checked.
Replace batteries when you get the Low Battery alert.
Caution: Only use brand new type AAA alkaline batteries.
1. Remove the plastic top cover by applying a gentle pressure on the two sides
opposite to the optional probe connector and pull the cover off as shown:
2. Remove the old batteries and replace with new ones. Install the batteries as shown:
3. Put the top cover back in place.
4. Perform a water leakage test as described in the Installation section of this
manual.