This unit has Accumulation function, it can minimize
the false alarm that caused by unstable pulse or any
abnormal signal ( false alarm ) and no e ect on the
function of re alarm at all.
Each zone uses two di erent LED to indicate Fire alarm
and Disconnection.
Zone test switch uses single-loop press type to
improve the twisting switch that its contact failure will
caused by dust and improper use.
Logical switch is di erent from traditional switch that
needs to switch over higher voltage directly, it can
prevent the damage caused by unstable voltage.