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CENTER 322 Sound Lever Meter

• RS-232 Interface

• 32,000 Records Datalogger

• Bar Graph Indication

• MAX/MIN Function

• Auto Ranging(30~130dB)

• Resolution 0.1dB

• Clock Display

• Level Range Display

Microphone: 
    Electorate condenser microphone
Accuracy:     ±1.5 dB ( ref 94dB @1KHz )
Level Range: 
     Lo = 30 ~ 80 dB
     Med = 50 ~ 100 dB
     Hi = 80 ~ 130 dB
     Auto=30~130 dB
Frequency Weighting:     A , C
Time Weighting:     Fast , Slow
Auxiliary Outputs:
   AC output
               Output voltage: 1Vrms (at full scale)
               Output impedance: Approx:600Ω
    AC output
               Output voltage: 10mV / dB
               Output impedance: Approx:50Ω
Dynamic Range:     50 dB
Frequency Range:     31.5Hz to 8KHz
Battery Type:     9V Battery
Battery Life:     50 hours ( with alkaline battery )
Operation Temp.: 
    0°C~ 40°C(<80% R.H.) 9V Battery, Carrying Case,  Calibration Screwdriver,  Windscreen

Accessories: 
    Battery, Operation  Manual, Carrying Case, Calibration Screwdriver, Windscreen, 3.5Φ plug Software, RS-232