SOUND LEVEL METER, pocket type
Model : SL-4030
* Main specification meet IEC 61672 class 2.
* A, C weighting, Max. hold,fast/slow time weighting, AC/DC output.
* Range : 3 ranges, 30 to 130 dB.
* Mini pocket size.
* DC 9V battery (006P) or DC 9V adapter in.