Continuously monitor sound levels throughout the day using SL130 Sound Level Alert. Bright LEDs alert user when sound level is too high or too low - LEDs can be read from 30m (100ft). Wall, desk or tripod mount with optional 15ft (5m) microphone extension cable for remote monitoring. User programmable high or low limit (30 to 130dB) with output to drive external relay module. Ideal for industrial, hospital, auditoriums, schools and other areas where there is a need for being alerted when sound level reaches set points.