Specification:

 
* Measuring Range: 30 - 130 dBA
* Accuracy: ±1.5 dB
* Frequency Range: 31.5Hz - 8.5KHz
* Frequency Weighting: A
* Digital Display: 4 digits
* Resolution: 0.1dB
* Sample Rate: 2 times/second
* Microphone: 1/2 inch electric condenser microphone
* Power Supply: 9V battery (included)
* Operation condition:0-40℃, 10-80%RH
* Storage condition: -10-60℃, 10-70%RH