WELCH ALLYN AM 282 Manual Audiometer, Precision Testing The AM282 Audiometer is a single-channel, pure tone, air conduction, portable instrument designed to provide basic audiometric screening capability for physicians' offices and industry. The lightweight design allows easy transport to a variety of testing locations. The clearly labeled front panel controls and full frequency range make accurate, reliable testing a simple matter for any user. The AM282 Audiometer is a precisely designed and calibrated instrument. With proper care it will deliver accurate sound-pressure levels to subjects' ears for hearing screening programs. Specifications: • 11 frequencies: 125 Hz to 8000 Hz• Wide intensity range• Compact, lightweight design• AC line power and battery• Calibration storage for standard earphones and optional insert phones• Ideal for physician’s office for screening audiometry