Marine BH-520/Ex Multi Sensor (Optical Smoke/Heat) Head, PCB Coated, IP44D, Explosion Proof by NEMKO, Must be connected to approved barrier BZ-500, SelfVerify
Marine BD-501/EX Heat Detector Head EX, Config. 56-88 deg.C, PCB Coated, Explosion Proof by NEMKO, Must be connected to approved barrier BZ-500, SelfVerify
