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.
Materials Included Headset TDH 39 earphones Patient response Audiogram pad Carrying bag
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.
5-year warranty. Does not apply to those parts that are subject to normal wear and tear, such as cords, power supplies, ear cushions and headbands. Replaceable parts which may deteriorate with use will be supplied at a reasonable cost.