Audiometer: PDD-401

  • PC based screening audiometer for the air conductive examination of hearing system
  • IEC 645-1 standard
  • Class Type 4 and Type 5
  • EN ISO 7029:2000 Statistical distribution of hearing threshold s as a function of age
  • Interpretation by PTA (Pure Tone Average)
  • Interpretation by Grade of Hearing Impairment

System integration

  • System integration with Piston spirometers
  • System integration into information networks
  • Health Level 7 (USA)
  • Geräte Daten Träger (Germany)
Database management system
  • Unlimited storage of patients and results
  • Full support of pre-post examinations
  • Trend analysis

Connecting to a laptop PC provides full portability in battery mode as well

  • Operating modes
  • Patient interface
  • Technical data
  • Manual
  • Semi automatic ascending iteration according to Hughson-Westlake protocol
  • Semi automatic descending iteration
  • Program able automatic sequence

Signal types

  • Continuous
  • Pulse
  • Interrupted
  • Telephonics TDH 39 built into a Peltor noise protecting case with 40 dB attenuation
  • Patient feedback with hand switch
  • Built-in microphone to communicate with the patient
Frequency 125Hz, 250Hz, 500Hz, 750Hz, 1kHz, 1.5kHz, 2kHz, 3kHz, 4kHz, 6kHz, 8kHz
Sound Pressure Level -10dB, 110dB
Total harmonic distortion < 1 %
Frequency deviation < 1%
IBM/PC connection USB port
Audiometer interface L 150 mm * W 82 mm * H 45 mm
Weight 210 g
Power supply External power supply not required



Patient with headset    
Device with headset and hand switch