Digital Sound Level Meter, 35 to 135 dB, Pce Instruments, Mfr#: PCE-MSL 1

Noise Meter / Sound level meter with A-frequency weighting / simultaneous temperature measurement / 0.1 dB resolution / HOLD function / extreme value measurement / large frequency range; backlit colour LCD/1/2" electret condenser microphone/display update every 300 ms/ robust ABS plastic housing/high precision/alarm at frequency exceeded/fast volume measurements/Automatic shutdown after 15 mins inactivity (can be deactivated)/ Battery life <60 hours/ Includes 3 x 1.5 AAA batteries and Instruction manual