Optical analog radio siren for Aritech analog control panels. IP54. Selectable frequency. It occupies one address on the loop. Red color. Maximum acoustic power range: 99dB at 1m. Powered by 3 AA batteries and 3 C batteries, it can provide up to 5 years of life. Dimensions with base: 120x125mm. Certificates: CE and CPR (EN54 parts 3 and 23).