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                                              Tremetrics RA650 

 Lipin/Dietz Associates, Inc.

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Tremetrics RA650 

The Tremetrics RA650 microprocessor audiometer is designed primarily for group testing applications.  With multiple channels, the RA650 can test up to 8 subjects at a time and is ideal for mobile health screening applications.Group hearing testing has never been easier. The RA650, the latest addition to the popular R600 Series family, packs comprehensive audiometric testing capability into a minimum of desk space. An operator can test up to 48 subjects per hour (with an 8-channel system), all from one PC console or laptop. Distinctive graphic symbols and color-coded cabling make setup a snap. Ideal for mobile and government/military applications, the RA650 offers our proprietary multimedia features, and can also provide convenient data management through FOSHM™, Tremetrics Windows-based health and safety software program.

Check the extra value features

  • Patented multimedia hearing testing in the subject's preferred language (instructions in English, Spanish and three additional languages, selectable at any time)
  • Narrow, space-saving footprint -- requires only 6.5" x 12.5" of desk space
  • "Adaptive" software for testing difficult subjects
  • Individual and group audiogram printouts
  • Interfaces with FOSHM™ health and safety software
    Audio Channels: Accepts up to a maximum of four (4) RA650 audiometer channels. Two RA650 chassis can be used to test up to eight subjects. 
    Control Channel: one control model per chassis. 
    Power: Auto-selectable 90-240 VAC +/- 10%, 50-60 Hz 
    Dimensions: Width 6 ½", Depth 12 ½", Height 9" 
    Weight: 6 ½" lbs. (1-station without earphones or handswitch) 
    Communications: RS232C at 19200 Baud. 
    Software interface: Manages up to eight (8) audiometer modules. 
    Equals or exceeds ANSI S3.6-1989. 
    Test frequencies: 500, 1000, 2000, 3000, 4000,6000, 8000, Hz. (8000 Hz selectable.) 
    Frequency accuracy: Better than 1%, crystal controlled. 
    Distortion: Total harmonic distortion below 40 dB (1%). 
    HL attenuator: -10 to 100 dB in 5 dB steps. 
    HL accuracy: +/- 1 dB. 
    Calibration: EEPROM calibration, frequency requires no adjustment; calibration date entered at time of calibration. 
    Rise/Fall time: Meets ANSI specifications. 
    Earphones: Telephonics TDH-39, 10 ohm earphones in Model 41 cushions. 
    Dimensions: Width 1", Depth 11 ¼", Height 6 ¼", Weight ½ lb. 
    Power: Supplied by mainframe. 
    The RA650 must be used with a PC Data management System. The PC and database management software are not included in the price of the RA650. Tremetrics can provide pricing for the FOSHM PC Data Management System upon request. 
    Computer: Intel Pentium or equivalent running Windows® 95 or NT. Color monitor (VGA minimum). 
    Minimum disk storage: 10 MB on hard drive, one 3 ½" floppy drive. 
    Minimum memory: 16 MB RAM. 
    Interface: Serial. 
    Windows-compatible, laser or inkjet recommended. 


  SKU # Price
Tremetrics RA650 Chassis w/Controller 77650-1001 $3250.00
Tremetrics RA650 Audiometer Module 77642-0111 $1495.00
Tremetrics RA650 Interface Software 77653-0001 $1750.00
Oscar 6 77760-0001 $550.00

Shipping Charges

For orders totaling Shipping Charge
$100.00 or less $12.00
$100.01-$1000.00 $20.00
$1000.01-$2500.00 $35.00
$2500.01-$4000.00 $45.00
$4000.01-$6000.00 $60.00
$6000.01-$8000.00 Call for pricing


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Copyright © 2012 Lipin/Dietz Associates, Inc.


All material contained herein, unless otherwise noted or linked to entities other than this one, remain property of Lipin/Dietz Associates, Inc. and reproduction of them in any form, without exclusive permission, is a violation of applicable copyright laws. Copyright © 2008 Lipin/Dietz Associates, Inc.
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Last modified: October 28, 2015