Decibel (dB) Sound Level Meters



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dB Sound Level Meters

Four models shown, but we do have others
328 Model 328 Sound Lever Meter
Complies with the IEC 61672-1 class 2 standard & ANSI S1.4 TYPE2
Mini Size
Low Cost High Performance
MAX Function
Resolution 0.1 dB 
Internal Calibrator
Microphone:
    1/2 inch Electret condenser microphone
Accuracy:
    ±1.4 dB ( ref 94dB @1KHz )
Measure Range:
    32 ~ 130 dB
Frequency Weighting:
    A
Time Weighting:
   Fast
Frequency Range:
    31.5Hz to 8KHz
Battery Type:
   Two 1.5V,Size AAA battery.
Battery Life:
    20 hours ( with alkaline battery )
Operation Temp.:
    0°C~ 40°C(<80% R.H.)
Storage Temp.:
    -10°C~ 60°C( <70% R.H.)
Dimension:
    206mm×42mm×25mm ( 8.1” ×1.7” ×1.0” )
Weight:
    Approx. 200g
Accessories:
    Manual, Battery, Calibration Screwdriver, Windscreen, Soft carry case.
320 Model 320
IEC 651 Type II
Level Range Display
Simultaneous MAX  MIN Measurement
4 digits Display
Auto Power Off
AC DC Signal Output
Resolution 0.1 dB update cycle 0.5 s
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
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 NEDA 1604, IEC 6F22, JIS 006P
Battery Life:
    50 hours ( with alkaline battery )
Operation Temp.:
    0°C~ 40°C(<80% R.H.) 9V Battery, Carrying Case,  Calibration Screwdriver,  Windscreen
322 Model 322
  • 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  
325 Model 325

Mini Size
Newly Design Shape
Low Cost High Performance
MAX/MIN Function
Level Range Display  
AC  Singal Output
Resolution 0.1 dB 
IEC 651 Type II
Microphone:
    Electric condenser microphone
Accuracy:
    ±1.5 dB ( ref 94dB @1KHz )
Level Range:
    Low = 35 ~ 80 dB
    Medium = 50 ~ 100 dB
    High = 80 ~ 130 dB
Frequency Weighting:
    A , C
Time Weighting:
    Fast , Slow
Auxiliary Outputs:  
    AC Signal Output
Dynamic Range:
    50 dB
Frequency Range:
    31.5Hz to 8KHz
Battery Type:
   9V Battery NEDA 1604, IEC 6F22, JIS 006P
Battery Life: 
    50 hours ( with alkaline battery )
Operation Temp.: 
    0°C~ 40°C(<80% R.H.)
Storage Temp.:
    -10°C~ 60°C( <70% R.H.)
Dimension: 
    232mm×54mm×34mm ( 9.1” ×2.1” ×1.3” )
Weight:
    Approx. 200g
Accessories:
    Manual, 9V Battery, Calibration Screwdriver, Windscreen




Please contact us with any questions, orders, or comments.








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