WT85B Sound Level Meter Digital Decibel Meter Digital Noise Meter Environmental Noise Tester

Measuring Rang : 30-130dBA
Accuracy +-1.5dB
Frequency response :31.5HZ-8KHZ
Frequency weighting : A weight
Resolution: 0.1dB
Working temperature and humidity：0-40 10-80%RH
Storage temperature and humidity ：-10-60 ，0~90%RH