Autronica manual call point. With SelfVerify function and LED-indication. Heavy-duty metal conduit box for maritime or similar applications. The BF-300M/N is a manual call point designed for use with Autronica's interactive fire alarm system, AutroSafe, and comprises the SelfVerify function. This function ensures the highest grade of reliability and the lowest degree of manual testing because all units comprising this function are automatically selftested once every 24 hours. The BF-300M/N is delivered with a metal box fitted with two cable glands. This version is made for applications where a higher degree of weather protection is required. The call-point is for use in hazardous area zone 2. It must be connected to the BSD-310/N loop driver but an isolator/barrier unit is not required. The call point must be installed according to local regulations which normally means along escape routes, landings and exits.