|ÒÕ6831 Audio-visual alarm is intended for sound and visual alarm to warn the mining staff in case of emergency.
Sound pressure level at the distance of 1 m along the transmitter axis – 85 dB, no less;
Frequency of sound signal - 3000-3800 Hz.
Level and type of Audio-visual alarm explosion protection - RО (mining extra explosion- proof (Ukrainian standard)) Ia.
Level of Audio-visual alarm ingress protection – IP54.
Audio-visual alarm is designed for application in mines including gas and dust hazardous ones.