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Maico ST20 Audiometer

$2,911.29

Ship from abroad
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 8kHz 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 paper.

Delivery & Availability:
Typically 10 working days – excluding furniture and heavy/bulky equipment. Please contact us for further information.

SF1033560063-2
Brands:: Maico

Description

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 8kHz 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 paper. The automatic and sliding masking is very easy to operate.

BONE CONDUCTION WITH ST20 BC
The ST 20 BC additionally offers bone conduction to the basic version. The output of the B71 bone conductor goes up to 70 dB hearing level. The masking noise is automatically controlled.

DIAGNOSTIC FUNCTIONS WITH ST20 SISI
In addition to air and bone conduction, it offers the SISI test, showing whether the hearing impairment is cochlear or retro cochlear. PC connection with ST 20 SISI PC The serial PC interface of the ST 20 SISI PC automatically transfers all test results to a connected PC.

 

Technical Data

  • Test signal – Pure or Pulsed tone
  • Test frequencies – 0,25; 0,5; 1; 2; 3; 4; 6; 8 kHz
  • Level steps – 5 dB noise free
  • Masking signal – white noise, automatic sliding: AC = -15 dB, BC = + 15 dB distance to test signal level
  • Masking source – contra lateral headphone
  • Standards – IEC 601-1; IEC 645 part 1, class 4; medical directive 93/42/EEC, class IIa
  • Power supply – Mains 230 V~, 50/60 Hz, app. 4 VA
  • Dimensions and weight – W x D x H: 29 x 22 x 6 cm /1,9 kg
  • Standard accessories – Headphone Holmco 8103 power supply cable, audiogram paper

Air conduction

  • Dynamic range – -10 to 100 dBHL (90 dB at 0,25 kHz, 6 kHz, 8 kHz)
  • Headphone – Holmco 8103 with sound-excluding ear muffs

Bone conduction

  • Dynamic range – (ST 20 BC, ST 20 SISI) -10 to 70 dBHV
  • BC headphone – B 71

SISI-Test

  • Modulation test signal – 4,8/0,2 s; , 1 dB (test), 5dB, 3dB, 2dB (conditioning)

Options

  • Free field – -10 to 90 dBHL (10 cm distance)
  • LCD display – 16 digits, view angle adjustable
  • Patient response switch – ergonomic handheld switch
  • Carrying case – light weight, durable aluminium suitcase
  • PC-interface – serial RS 232, 9-pin connector MAICO protocol

 

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