407730-NIST
40-130dB Meter featuring large LCD display with analog bargraph, ±2dB accuracy with 0.1dB resolution A+C weighting, AC analog output, Record Max/Min values over time, Utilizes 0.5"(12.7mm) condenser microphone, Tripod Mount for Field Use, Complete with microphone wind cover & 4 AAA Batteries with NIST.