| Microphone |
HY207 pre-polarized capacitive class 1 project measurement microphone, free-field frequency response, nominal diameter 0.5 in (12.7 mm), nominal sound pressure sensitivity of 50 mV/Pa (the nominal sound pressure sensitivity level is -26 dB, reference to 1 V). |
| Frequency Range |
10 Hz to 20 kHz |
| Frequency Weighting |
A-weighting, C-weighting, Z-weighting. |
| Time Weighting |
F (Fast), S (Slow), I (impulse). |
| Low Frequency Weighting |
16 Hz to 200 Hz (for secondary noise measurement). |
| Measuring Range |
30 dB (A) to 130 dB (A), 40 dB (C) to 130 dB (C), 45 dB (Z) to 130 dB (Z). |
| Performance Class |
The performance of Class 1 sound level meter meets the requirements of GB/T3785 and IEC61672 Class 1. |
| Preset Time |
Manually set, the measurement duration is 3 s to 99 h 59 min 59 s. |
| Display |
dot matrix liquid crystal display (LCD), resolution 0.1 dB, display Lp, Leq, LAE, L5, L10, L50, L90, L95, L max, L min, LC peak, and other parameters, can also display 1/3 octave and 1/1 octave frequency spectrogram. At the same time, it has signs of overload, under-limit, and low battery voltage. |
| Filter |
Built-in 1/3 octave and 1/1 octave. |
| 1/1 Octave Filter Midband Frequencies |
16 Hz, 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, and 16 kHz. |
| 1/3 Octave Filter Midband Frequencies |
16 Hz, 20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz, 100 Hz, 125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz, 1.6 kHz, 2 kHz, 2.5 kHz, 3.15 kHz, 4 kHz, 5 kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 16 kHz, and 20 kHz. |
| Analog Output |
– DC Voltage Output: 15 mV/dB, 450 mV to 1950 mV in the whole measurement range (that is, 1950 mV when the upper limit of the measurement range is 130 dB, and 450 mV when the lower limit is 30 dB). – AC Voltage Output: The output voltage has a linear relationship with the measured sound pressure, corresponding to the upper limit of the measurement range, the root mean square value of the output voltage is 2.0 V |
| Data Output Connector |
USB type B socket for data output, which can be connected to a PC program for data analysis. |
| Print Output Connector |
The output connector is DB9 male (pin type), RS232 serial communication port, ASCII code output, external RD-V32-SN portable mini thermal printer. |
| SD Card |
8 GB. |
| Power Supply |
2 AA batteries or a special power bank provided by the company for this product. |
| Operating temperature range |
Class 1 sound level meter: 14 °F to 122 °F (-10 ℃ to 50 ℃) |
| Dimensions: L × W × H: |
8.27 in × 2.68 in × 1.22 in (210 mm × 68 mm × 31 mm) |
| Weight: |
0.46 lb (210 g) |
