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

Source:Ambco