Red directionable sounder with insulator incorporated. Maximum consumption: 11,7mA. Maximum sound power: 97dB +/-3dB @1m. Dispose of 32 tones and 3 volume levels (High, medium and low) selectionables trhough microswitches. Connected and power supplied directly by 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