Portable Multifunctional Digital Sound Level Meter Noise Meter TES-1357 Level Range  30dB to 130dB (Accuracy +/-1.5dB)                0.1dB Resolution      Range from 30 to 130dB      Fast/Slow dynamic characteristic      A&C Frequency Weighting                Applicable standards    IEC Pub 651 Type2 , ANSI S1.4 Type 2        Accuracy    +/- 1.5dB (ref 94dB @1KHz)        Digital display    4 digital LCD        Measurement Level A weighting    30dB to 130dB        Measurement Level C weighting    35dB ~ 130dB        Level Range    30-80dB, 50-100dB, 60-110dB, 80-130dB        Measurement Frequency range    31.5 Hz to 8KHz        Frequency Weight    A and C        Time weight    Fast and Slow        Microphone    1/2 inch Electret condenser microphone        Digital display    4 digit LCD , 0.1dB resolution, updated every 0.5s        Quasi-analog bar indicator    1-dB steps, 50dB display range, updated every 100ms        Display Warning function Overrange indicator Underrange indicator    Displayed at the upper limit Displayed at the lower limit        Analong AC / DC output    2Vrms ( at full scale ) , 10mVDC / dB        Power supply    Four 1.5V LR-6/AA size alkaline cell, AC adapter        Battery Life    about 20 hours        Operating temperature , humidity    5 ~ 40 , 10 ~ 90% RH        Dimensions    265 (L)times72(W)times21(H)mm, ( 10.4" Ltimes2.8" Wtimes0.8" H )        Weight    Approx. 310g        Accessories    Instruction manual , Battery(without package) , Carrying case , Adjustment screwdriver , Wind shield, 3.5 f plug