Lar Wall-Mounted Digital Sound Level Meter — LCD Decibel Noise Monitor (30 ~ 130dB), Adjustable 5~120s Alarm

Lar digital LCD display provides clear, easy-to-read numerical measurements for fast viewing. The unit is simple to use with no setup required — it starts measuring immediately after power-on. Measurement range is 30 ~ 130dB and the meter includes both upper and lower limit alarm functions. The alarm duration can be set between 5~120 seconds (factory default of 120 seconds). An audible buzz sounds when the real-time level reaches the alarm threshold; the meter holds that reading for 5s before returning to normal monitoring mode.