Benetech GM1351 Digital Sound Level Meter 30dBA~130dBA 31.5Hz~8KHz max/min hold

Features 1.It is designed according to the IEC651 TYPE2 & ANSI S1.4 TYPE2 2.Modern, conpact, portable design 3.Accuracy up to ± 1.5 dB 4.Measurement range: 30dBA-130 dBA 5.MAX/MIN Hold 6.Auto backlight display 7.Auto power OFF Specifications Measuring range      30dBA~130dBA      Accuracy      ± 1.5 dB (94dB@1KHz      Frequency range      31.5Hz~8KHz      Frequency weighting      A      Digital Display      4digits      Resolution      0.1dB        Sample rate      2 times/second      Microphone      1/2 inch electret condenser microphone      Power supply      9V Battery      Power life      About 30 hours (alkaline battery)      Operating condition      0~40℃，10~80%RH      Storage condition      -10~60℃，10~70%RH      Weight      144g (including battery)      Dimension      57*26*149mm        Packing List Blister packaging*1 Host*1 9V battery*1 Instructions*1