Basic diagnostic


Inventis Bell color display
Inventis Bell air and bone examinations
Inventis Bell screen view
Inventis Bell practical keyboard
Inventis Bell complete audiogram
Basic diagnostic


Bell is a screening/diagnostic audiometer, capable of performing fast and accurate air and bone threshold examinations.
Simple operation, a user-friendly interface and easy portability make Bell the ideal instrument for private clinics, multi-specialist clinics and occupational medicine applications.

It is available in two configurations to suit different user needs:

  • Basic (AC only)
  • Plus (AC & BC)

Bell features Inventis Hy-Tech: it is possible to decide whether to operate it in the traditional way (stand-alone mode) or control it through the computer.

Simply connect Bell to a USB port on your computer (no drivers needed), and you can transfer exam results into Maestro or Noah database. With the live view feature, you can have a wide view of the examination in progress on the computer display.

Inventis Bell fast and accurate
Advanced screening
Fully featured screening audiometer (AC and BC) with color graphical display.
Hybrid technology
Bell features Inventis Hy-Tech: you can operate it in stand-alone mode or control it through the computer.
Live view feature
Wide screen view
With the live view feature, you can have a wide view of the examination in progress on the computer display.

Available signals Stimulus: pure tone, warble tone
Masking: NBN, WN
Signal specification Attenuator step: 5 dB
Presentation: Continuous, Pulsed (0.5, 1 and 2 Hz)
Warble: 5 Hz sin wave modulating signal
Available outputs and transducers AC: TDH-39 / DD45 headphones, ER-3 / IP30 insert earphones
BC: B-71 bone vibrator (Plus only)
Insert masking earphone: IME-100 (Plus only)
Available tests
  • Pure Tone audiometry
  • Auto threshold (modified Hughsone-Westlake)
Patient-operator communication Talk over: built-in or external (optional) microphone
Patient response trigger
Internal database Up to 100 patients both AC and BC thresholds
Calibration Validity: 12 months
All the parameters set through the device software
Computer interface Connection: USB (driverless)
Compatible software: Inventis Maestro
Hybrid technology Description: Bell can be controlled either as a stand-alone or as a PC-controlled audiometer
It requires Inventis Maestro software.
Display Shows the complete audiogram during the test
Type: Graphical colour TFT LCD
Size: diagonal 4.3”, 95 mm x 54 mm
Resolution: 480 x 272
Power supply Maximum consumption: 8 Watts
Power supply: 6V, 2A cont., through an external medical grade 100- 240 Vac 50/60 Hz power supply
Mechanics Size (WxDxH): 32 x 32 x 9 cm / 12.6 x 12.6 x 3.5 in
Weight: 1.8 Kg / 4.0 lbs
Freight packing Size (WxDxH): 47 x 40 x 35 cm / 18.5 x 15.8 x 13.8 in
Gross weight: 4.2 Kg / 9.3 lbs



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