Microphone | AWA14425 type pre-polarization test capacitor microphone, diameter Φ 12.7mm (1 / 2 "). Nominal sensitivity: about -29 dB. Frequency range: 10 Hz ~ 20 kHz. |
Measuring range | 28dB ~ 133dB (A), 33dB ~ 133dB (C), 38dB ~ 133dB (Z) (2 * 10-5 Pa as reference, the same as below). |
Frequency range | 10Hz~20kHz |
Background noise | 12dB (A), 17dB (C), 22dB (Z) (with front stage and short circuit through 20pF capacitor. |
Right of frequency meter | Acac Z weight calculation |
Time weighting | F (fast), S (slow), I (pulse) |
Reference direction | The axial direction of a capacitive microphone |
Function | Instrument with PC or mobile phone software can achieve total value analysis, statistics, spectrum analysis and other functions. Note: PC, mobile phone software is also available |
According to | 128 × 64 lattice OLED |
Hardware interface | USB |
Data output | WIFI |
WIFI transmission distance | 10 m (signal interference may be reduced at a distance around sight) |
WIFI model | AP mode, STA mode |
Calibration | Use a level 1 or more sound level calibrator |
Power supply | Lithium battery: after fully charged, it can work continuously for more than 6 hours External power: 5V 1A USB interface power |
Overall dimensions | l×b×h(mm):210×68×27(mm)。 |
Quality | 240g |
Conditions of use | Gas temperature: - 20 ℃ to + 50 ℃ Relative humidity: 25% ~ 90% Gas pressure: 65kPa ~ 108kPa |