| Accuracy |
: +/- 1.5 dB (under reference conditions) |
| Frequency range |
: 31.5 Hz to 8.5 KHz |
| Linearity range |
: 50 dB |
| Measuring level |
: 30-130dBA, 35-130dBC |
| Frequency weighting |
: A, C |
| Digital display |
: 5 digits |
| Resolution |
: 0.1 dB |
| Display |
: 0.5 secretary |
Bar graph
|
: 50 dB scale at 1 dB step for monitoring current sound pressure level display
period: 50mS |
| Level range |
: 30-80 dB, 50-100 dB, 60-110 dB, 80-130 dB |
Over indicate over
range |
: Under indicate less then lower limit of the range
|
| AC output |
: 0.707 Vrms at FS output impedance approx 600 ohm |
| DC output |
: 10mV/dB output impedance approx 100 ohm |
| Time waiting |
: Fast/Slow |
| Microphone |
: ½ inch Electret Condenser microphone |
| Max |
: Maximum hold |
| Power supply |
: 4*AA 1.5V alkaline cells or DC 6V 100(Maximum) hold |
| Self calibration time |
: 10 sec (every turn on) |
| Operating temperature |
: 0°C to 40°C |
| Operating humidity |
: 10% to 80%RH |
| Storage temperature |
: -10°C to 60°C |
| Storage humidity |
: 10% to 70%RH |
| Dimension |
: 265(L)*72(W)*35(H)mm |
| Weight |
: 300g (including batteries) |
USB & Data Storage
|
: May record directly 43690 noise data (special user may expand to 131070).
May connect with PC through USB, have functions of data record downloading, real time data sampling analysis
& printing graph & data etc. |
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