Economical meter measures sound decibel levels for a variety of workplace situations including workplace machinery monitoring and audio/alarm system checks. Meter features a 40 to 130 dB adjustable measuring range with selectable A/C weighting and fast/slow response. Digital display includes 0.1 dB resolution plus analog bar graph for easy readability. MAX Hold function stores loudest dB level reached and auto power off conserves battery life over time.