Model CHQ-DSC2/M(SCI) is a Marine Approved Dual Sounder Controller,
which has been designed to provide two sounder outputs (that can be driven
separately) with full fault monitoring. The monitored input can be used for
local power supply fault monitoring or as a general-purpose input. The unitutilises simple DIL switches forreliable addressing. A backbox is also available(CHQ-BACKBOX) which, when used in conjunction with the CHQDSC2/M(SCI),increases the IP rating to IP65.