Sound Level Min. dB = 30 / Sound Level Max. dB = 130 / Sound Level Resolution dB = 0.1 / Response Time (Fast) ms = 125 / Response Time (Slow) s = 1 / Microphone Type = 1/2 " Electret Condenser / Data Logger = 14000 Records / Display Type = LCD / Battery Type = 1x 9 V / Frequency Measuring Range Max. kHz = 8 / Frequency Measuring Range Min. Hz = 31.5 / Built-in Calibrator = No