Ingco Digital?sound level?meter HETSL01

Measuring range:30-130dB
Dynamic range:50dB
Sound pressure accuracy:?1.5dB(94dB@1KHz) ,?1.5dB(94dB@8KHz)
Frequency response:30Hz-8KHz
Microphone:Polarized capacitance microphone
With backlight function
With lower battery indication function
With 3pcs LR03 AAA batteries
Packed by color box