Beurer HA 20 Mode D'emploi page 45

12. TECHNICAL SPECIFICATIONS
Max. output level:
Sound pressure level:
Sound amplification:
Overall harmonic distortion: ≤ 5%
Frequency range:
Input noise:
Voltage:
Power supply:
Operating conditions:
Storage and transportation
conditions
128 dB ± 4 dB
129.4 dB in accordance with IEC 60118-7
40 dB ± 5 dB
200 ~ 5000 Hz
≤ 30 dB
1.4 V
≤ 4 mA
Temperature: -10°C ~ +40°C
Relative humidity: 30% ~ 75%
Atmospheric pressure: 700 ~ 1600 hPa
Temperature: -10°C ~ +55°C
Relative humidity: 10% ~ 90%
Atmospheric pressure: 500 ~ 1600 hPa
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