Our Bestseller ST 20 The screening audiometer with threshold measurement • • 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

ST 20 Audiometer series Screening audiometry for all purposes Fast and easy screening with ST 20 The basic ST 20 is easy and comfortable to operate. Its unique light point technology combines audiometry and error free recording in one step. The 8 test frequencies of the ST 20 from 250 Hz to 8 kHz can be changed with two buttons. The solid and sound isolated headphones deliver up to 100 dB hearing level. The intensity can be changed with the slide control in 5 dB steps down to -10 dB. The actual value of frequency / level is indicated by a red light which can be easily marked on the audiogram...