Microphone : Capacitance microphone Measuring Range : 30-130dB Frequency Range : 20HZ-8KHZ More Specification: http: / / bestinstrumentindo.com/ index.php/ component/ content/ art icle/ ....
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: / / ....