The Apollo Discovery Base Sounder 58002-351APO is a white polycarbonate fire alarm sounder with a diameter of 115mm and a length of 38mm. It is designed for use in fire protection systems and has an operating temperature range of -20 to 60°C. The sounder is polarity sensitive and operates in environments with humidity levels of 0% to 95% (no condensation or icing). Manufactured in the United Kingdom, this unit is approved by CPR VdS LPCB and adheres to EN 54-3 and EN 54-17 standards. It includes terminal functions for +R remote indicator positive connection.
eBay