AMBCO Electronics - From: 650A To: 650AB - Manual Audiometer (Ac Adapter & Carry Bag)

Portable, light weight Easy to use tone switch Tone present indicator Plug-in 110 or 220 volt, 650A Plug-in and battery, 650AB Battery life indicator Five year warranty Extremely accurate Exceeds all specifications Steady and pulsed tone Custom carrying bag Patient response 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 percent , (steady and pulsed tone) Hearing Threshold Range: 0 to 90dB in 5dB steps Accuracy better than ± 2 dB Harmonic Distortion – less than 3 percent Power: 110-230 VAC, 50-60 HZ UL, C.S.A. approved power supply. Long hour operation on one 9 volt battery (650AB). Total Weight less than 4.5 Ibs (complete with headset, TDH 39 earphones, patient response, audiogram pad and carrying bag.) Features Portable, light weight Easy to use tone switch Tone present indicator Plug-in 110 or 220 volt, 650A Plug-in and battery, 650AB Battery life indicator Five year warranty Extremely accurate Exceeds all specifications Steady and pulsed tone Custom carrying bag Patient response 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 +/- 2 dB 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 (650AB). Total Weight less than 4.5 Ibs (complete with headset, TDH 39 earphones, patient response, audiogram pad and carrying bag.)