Measuring range: 30~130 dBA
Accuracy: ±1.5 dB
Resolution: 0.1 dB
Frequency response: 31.5Hz ~8.5KHz
Frequency weighting characteristic: A
Sampling rate: 2times/second
Microphone: 1/2 inch polarization capacitance microphone
Max min reading/function
Automatic backlight
Low battery indication
Automatic power off/on
Data hold function
Auto calibration function
DC/AC signal output
Power: 3 X AAA battery (Not included)