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

ANSIANSI

S3.6 1989, (ASA81-1989)ISO389-1985, 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: 110-230VAC, 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,TDH39 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 exceedsANSIS3.6 1989, (ASA81-1989)ISO389-1985, 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: 110-230VAC, 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,TDH39 earphones, patient response, audiogram pad and carrying bag.)