Oops just remembered "no chime" on the 9450 and I think the mA draw threshold was 820 before it lost DC :D,
So had the odd one trip the battery polyswitch,
On testing battery good and and mA draw ok,
Had the odd one that reverted but most didn't, had a cust years ago with the three zone in his shop,who wanted his door entry in chime because his living quarters was at the rear and he wanted to be alerted when cust entered shop.
Me told him they were better alternatives and to keep his three zone but he wanted a system that chimed so out came the 9450 for the 9454.
ps me hope the 9450 didn't have chime facility or me a dopey dick :D
e manno
December 2012