The Ambco Model 650 Pure Tone Audiometer is a clinical
audiometer approved for pure tone screening and threshold hearing tests.
Features and Benefits
Portable and lightweight.
Easy to use tone switch.
Tone present indicator Plug-in 110 or 220 volt, 650A.
Plug-in and battery, 650AB.
Battery life indicator.
Extremely accurate.
Steady and pulsed tone.
Custom carrying bag.
Patient response.
Technical Specifications
Meets or exceeds ANSI S3.6 1989, (ASA 81-1989) ISO 389-1985, C.H.D.P., O.S.H.A, E.P.S.D.T., F.A.A., Police, Divers, requirements.
Frequency Range: 250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz accuracy better than ± 3% (steady and pulsed tone).
Hearing Threshold Range: 0 to 90dB in 5dB steps accuracy better than ± 2dB.
Harmonic Distortion - less than 3%.
Power: 110-230 VAC, 50-60 HZ UL, C.S.A. approved power supply. Long hour operation on one 9 volt battery (650 AB) Weight: < 4.5 lbs.
Materials Included
Headset
TDH 39 earphones
Patient response
Audiogram pad
Carrying bag
Features and Benefits
Portable and lightweight.
Easy to use tone switch.
Tone present indicator Plug-in 110 or 220 volt, 650A.
Plug-in and battery, 650AB.
Battery life indicator.
Extremely accurate.
Steady and pulsed tone.
Custom carrying bag.
Patient response.
Technical Specifications
Meets or exceeds ANSI S3.6 1989, (ASA 81-1989) ISO 389-1985, C.H.D.P., O.S.H.A, E.P.S.D.T., F.A.A., Police, Divers, requirements.
Frequency Range: 250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz accuracy better than ± 3% (steady and pulsed tone).
Hearing Threshold Range: 0 to 90dB in 5dB steps accuracy better than ± 2dB.
Harmonic Distortion - less than 3%.
Power: 110-230 VAC, 50-60 HZ UL, C.S.A. approved power supply. Long hour operation on one 9 volt battery (650 AB) Weight: < 4.5 lbs.
Materials Included
Headset
TDH 39 earphones
Patient response
Audiogram pad
Carrying bag
