|If your alarm display is reading 'low battery', or the display is gone dead, then it will need a new alarm battery. We will call out and complete a full service and replace the faulty battery for €110. Another sign of a faulty alarm battery is a sudden activation of the system with a dead keypad which doesn't accept the code.
Due to overwhelming volume of business Gard are no longer servicing alarms unless we installed them.
More-details - Service & Maintenance
Typcial alarm battey located in main control panel