Optical smoke detector with built-in safety and Tyndall effect operating principle. Designed for installation in premises with an explosive atmosphere (Zone 0, Zone 1, Zone 2). Pairs with barrier 48BAZ000. Approved and conforms to standards CE 0081 II 1 G Eex ia IIC T6/LCIE 03 ATEX 6350 X and approved to standard EN54-7.