Application: it is used to calibrate the sound level meters.
Standard: GB/T3785, IEC651 Type2, ANSIS1.4Type2
Function: SL LEQ
Measuring: A .40-125dB C. 40-125dB Line. 40-125dB
Filter
Detection characteristics: fast/slow
DC output: 10mv=1dB
Resolution:0.1dB
Accuracy: 1dB
Display: LCD display
Power supply:1x9V 6F22 battery
Battery indicator: low battery indicator
Dimensions: 195x72x31mm
Weight (not including probe): 195g