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Welch Allyn 28600 TM286 AutoTymp Pure Tone and Tympanometry Screener

In stock
SKU : 71090
MPN : 28600

Includes: Tympanometry Mode, Reflex Mode, and Audiometry Mode; Audiometry Headset (External), Threshold Audiometry Card, Thermal Printer Paper (3 rolls), Ear-Tip Set (#26100); 100-240 V, 50-60 Hz AC, IEC Plug Type-B.

Hillrom/Welch Allyn is now part of Baxter Healthcare


The Welch Allyn 28600 TM 286 AutoTymp Pure Tone & Tympanometry Screener provides flexible screening for tympanometry, acoustic reflex measurements and audiometry to meet your testing needs today and in the future.

Designed to make detection and documentation of middle ear pathologies fast and accurate, the TM 286 AutoTymp gives users more screening possibilities and more measurement data, for more complete diagnoses and documentation. The Welch Allyn TM 286 AutoTymp offers tympanometry and ipsilateral acoustic reflex testing, with optional manual audiometry in one convenient, lightweight, and compact design.


  • Provides an easy tympanometric seal via a lightweight, hand-held probe.
  • LEDs on the probe guid the tester though the sequence providing step-by-step accounts of test status, indicating proper ear seal, test mode, and test completion.
  • Test results are displayed as an audiogram on the LCD as they become available.
  • Convenient memory capacity stores up to 12 test results instantly.
  • Printout flexibility allows the user to print individual test results or a complete battery, eliminating the need for note taking.
  • Has a built-in calibration check and optional audiometry and RS-232 port to download patient data into PCs.

Tympanometry: 226 Hz

  • Ear Canal Volume (ECV)
  • Compliance Peak (cm3)
  • Pressure at peak of the tymp (daPa)
  • Gradient (GR) in daPa (width of the tymp)

The tympanograms and the following summary information are clearly shown on the crisp LCD once the test is complete. LEDs on the probe guide the tester through the test sequence. All test results can be printed on the internal printer. The ASHA normal box can be shown as a guide on the display and printouts, if desired. A hand-held probe is provided with versions providing 226 Hz only measurements.


Both manual and automated audiometry are available with the TM 286. During manual audiometry, the operator controls the selection of frequencies, signal format (steady, pulsed and FM), intensity, tone presentation and identification of the hearing threshold values per frequency tested. For automated audiometry, the test protocol is selected in the Program mode and includes frequencies to be tested, signal format, intensity range and scoring rules. Once the test begins, the test sequence is controlled by the TM 286 based upon the operation of the optional hand switch by the person being tested.

Test results are displayed as an audiogram on the LCD as they become available. These results can be printed in a tabular or audiogram format. The standard headset for audiometry is the TDH 39. However, the EAR 3A or 5A insert phones may be added as an option. It is possible to store the calibration values for both the TDH and insert phones so that a button press selects the transducer and its calibration.

Tymp and Reflex:

Ipsilateral reflex measurements may be performed along with 226 Hz tympanometry. The frequencies available are 500, 1000, 2000 and 4000 Hz. All reflex results may be displayed and printed as:

  • Reflex tracings and dB HL values
  • dB HL values only
  • Yes/No response

Any combination of ipsi reflex measurements up to a maximum of four frequencies may be selected.

Memory, Printing and Data Transfer:

A maximum of 12 test results can be stored in the TM 286 memory for review and selection for printout.

A built-in printer is available; it provides the ability to obtain hard copies of all test results. Alternatively, the test results can be sent to an optional external printer via the built-in USB port. An external inkjet printer which recognizes the PCL3 or PCL3GUI language format can be selected.

Test results may also be transferred to an external computer for data storage via the second built-in USB port.

Manufacturer Hillrom
Custom Specifications
  • Product Type: Tympanometer
  • Dimensions: 4.7" (L) x 12.5" (W) x 14.5" (H)
  • Voltage: 100 - 240 VAC (±10%)
Unit of Measure (UOM) EA
Dimensions 4.7" (L) x 12.5" (W) x 14.5" (H)
Country of Origin US
Return Policy

Every effort is made to accurately pack and ship your order. Should you encounter a problem, please follow the instructions below.

The following items have return restrictions or are not returnable:

Special Order Items

Upholstered Items (ie: stools and tables )

Opened or defaced product

Discontinued product

Disposable product

Used instruments

Expired product

Product returned after 30 days of invoice

Products drop-shipped directly from the manufacturer

Freight Damage – Inspect your shipment

Thoroughly inspecting your order is CRITICAL. We recommend you check your order immediately while the driver is present. If there is damage to the packaging or to the internal contents, please have the delivery driver make appropriate notations before signing for the shipment. Promptly notify our returns department of any freight damage. If damage is concealed, you MUST:

1 - Notify us within 48 hours of receipt.

2 - Report damage in writing to

3 - Include pictures and a description of the damage so that we may file the appropriate paperwork.

4 - Retain all original packaging material and packing information to accommodate for possible freight inspection.

Credit for returned goods

In order to receive credit for in stock items shipping from QuickMedical, product(s) must be returned within 30 days of invoice, must be unopened, and in salable condition.

Customer is responsible for return shipping.

Special order items, upholstered items (i.e.: stools and tables), opened or defaced products, discontinued products, used instruments, expired products, and products returned after 30 days of invoice WILL NOT be returnable.

In case of customer error, credit issued for in stock items will be less a 25% restocking and freight costs.

Return policy for non-stock, special order, and or drop shipped items will be subject to the return goods policy of the manufacturer.

All returns must have a Return Goods Authorization number clearly identified on the shipment. All items returned in any other manner will not be processed.

Please email or dial 888-345-4858 should you have questions about a return or to obtain a Return Goods Authorization number.


All products are new and warranted by the manufacturer. If you need specific product warranty information, call QuickMedical at 888-345-4858.

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