Directionable sounder with transparent flash and isulator incoporated. Maximum consumption: 14,7mA. Maximum sound power: 97dB +/-3dB @1m. Strobe light frequency: 1Hz. Dispose of 32 tones and 3 volume levels (High, medium and low) selectionable through a microswitch. Connected and power supplied directly to the loop, occupying a direction from 0 to 159 of the control panel. Requires B501AP, BRR or WRR base. Compatible with OPAL (159+159) and CLIP (99+99) protocole.