Screening audiometer with air conduction and/or bone conduction and preset masking on AC/BC.
- Air conduction from 250 Hz to 8 kHz with automatic masking.
- Bone conduction with automatic masking (ST 20 BC).
- Diagnostic functions (ST 20 SISI).
- Frequency and intensity indicated by red light.
- Headphone DD65 perfect accessory in noisy environments.