Measurement Range:
30~130dB
Frequency response:
31.5Hz ~ 8.5kHz
Accuracy
±1.5dB(In Standard sound:94dB@1KHz)
Microphone::
1/2 inch condenser microphone
Digital Display: :
3pcs 3-inch digital tube display three
Power supply:
DC 5v 1A micro USB
working environment
0 - 40 degrees 10 - 80%RH
Connecting computer
Via USB cable