Wall-Mounted Digital Sound Level Meter — Large LCD Decibel Tester, 30 ~ 130dB Range, Adjustable Alarm

Compact wall-mount digital sound level meter with an oversized LCD for clear, easy-to-read numeric display and accurate decibel monitoring. Designed for simple use — it begins measuring immediately on startup without complicated setup. Measurement range: 30 ~ 130dB, with both upper and lower limit alarms for threshold monitoring. Alarm timing is user-adjustable from 5~120 seconds (factory default of 120 seconds). Includes an audible alarm output (buzzer) that activates when the live measurement reaches the preset alarm level; the unit holds the displayed reading for 5s then returns to normal measurement mode.