... Hardwired zones with EOL Resistor design which can prevent line-cut and short-circuit.Control panel totally support 4 piece of individual ... Zone, Bypass Zone, Gas Zone.Alarm transmission via telephone line, with line-cut, power failsure, battery level and communication failusre detection ... Dimention: 159mm×138mm×33mmNotice: The control panel, which is a metal cabinet, will be mounted out of the way in ...