KIDDE conventional programmable detection/extinguishing control panel kidde/aritech 3 zones, 2 cross-detection zones and 1 free programmable zone for extinguisher release, 6 supervised inputs (push buttons...) + 2 supervised. supports 4s modules (standard and supervised), 4s supervised sirens, 4s alarm and fault relay (volt-free), 20 devices/zone. auxiliary power supply. reset support. requires 2 batteries.