Description Digital Sound Level Meter | Total Tools CanadaMeasuring range: 30-130dBDynamic range: 50dBSound pressure accuracy: ±1.5dB(94dB@1KHz) ,±1.5dB(94dB@8KHz)Frequency response: 30Hz-8KHzMicrophone: Polarized capacitance microphoneWith backlight functionWith lower battery indication functionPacked by color boxWeight: 16.06 lbsDimensions: 19.29 × 9.84 × 9.65 inPCS/SBOX: 1PCS/CTN: 20