RA300 Digital Audiometer

Premium perfomance specifications at an affordable price

The affordable RA300 brings a new level of automation to a broad range of hearing screening programs. Small occupational health departments as well as hospital/community health programs can now benefit from Tremetrics' proprietary test paradigm which produces valid test results in as little as three minutes. The compact unit includes an easy to read, backlit display and outputs data to standard printers or PCs through its RS232C port. The RA300 Plus features an integral talkover microphone, 64-audiogram storage and patented multimedia capability,* allowing compatible PC software to conduct interactive, computer-voice instructed hearing tests.

Check the extra value features:

Built to Tremetrics high quality standards
Meets ANSI/OSHA requirements
Integral RS232C computer/printer interface
Flexible reporting formats
Automatic power compatibility worldwide

RA300 web data sheet ( PDF 233 KB)

Sample audiogram printout (PDF 24 KB)

RA300 Audiometer Specifications

Exceeds ANSI 3.6 – 1989, qualifies as a microprocessor audiometer under OSHA.
Test frequencies: 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz.
Test modes: Automatic, semi-automatic and manual.
Frequency accuracy: Better than 1%, crystal controlled.
Distortion: Total harmonic distortion below 40 dB (1%).
HL attenuator: 0 dB to 100 dB in 5 dB steps, accuracy +/- 1dB.
Electronic calibration; Through keyboard; or through computer with compatible software program (optional).
Rise/Fall time: Meets ANSI specifications.
Earphones: Telephonics TDH-39, 10 ohm earphones in Model 41 cushions.
Mechanical: High impact plastic housing, sealed membrane keyboard with two-line backlit vacuum fluorescent display, internal talk-over microphone (optional).
Physical: Width 13", Depth 11 1&Mac218;4", Height 4 1&Mac218;2" (33 cm x 28.6 cm x 11.4 cm); weight 6 lb. (2.7 kg).
Power: Auto-selectable 90 – 240V with transient suppression for power line spikes.
Computer/printer interface: RS232 port.
Data output: 600 – 19200 baud, selectable.
Multiple data output formats: 20-column, 40-column, 8 1&Mac218;2" x 11", A4 or computer file.
Clock: Real-time, battery backed; time of day printout.