Specification AR-814 Measuring range : 30-130dBA, 35-130gBC Accuracy : Â ± 1.5dB Frequency Range : 31.5HZ-8.5KHZ Linearity Range : 50dB More Spesification: http: / / bestinstrumentindo....
Specification AR-214 Measuring range : 30-130dBA, 35-130gBC Accuracy : Â ± 1.% dB Frequency Range : 31.5HZ-8.5KHZ Linearity Range : 50dB more specification: http: / / ....