May 1, 2020
Did you know that your alarm system has a battery in the main panel, if this isn't maintained it will fail #powercuts will make your alarm activate as your system doesn't have a backup. We can fix this problem and recommend replacement at least every 3 years. #dmdfiresec #mainsfailure #battery #maintenance Www.dmdfireandsecurity.co.uk (at Warrington, England) https://www.instagram.com/p/B_o01j1AIwM/?igshid=1ir3sdygwkdmh