How do I know if I need to change the batteries?

The batteries should last 6 months provided the sensor is unplugged when the alarm is not in use.

If the alarm does not trigger when tested and it has been in operation for more than 6 months try replacing the batteries with four new LR44 coin batteries. Make sure the batteries are aligned in the direction indicated on the casing.

If the alarm still does not work see the section on Has the Urosensor worn out or been damaged? or the section on Has the alarm been damaged?

  

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