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Tono-Pen® XL Tonometer

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Tono-Pen® - The one you trust in tonometry. The Tono-Pen XL Applanation Tonometer is an easy-to-use, handheld instrument that provides IOP readings that correlate closely with Goldmann Tonometry. Tono-Pen XL's lightweight ergonomic design and advanced electronic measurement technology enable operators to take fast and accurate IOP measurement with minimal training. Weighing only 2.1 ounces, Tono-Pen XL is extremely portable making it easier to take IOP measurements anywhere on any patient. Designed & assembled in USA.

Tono-Pen AVIA, like the Tono-Pen XL, uses sanitized Ocu-Film® + Tip Covers to minimize the risk of patient cross contamination.

Tono-Pen® and Ocu-Film®+ products are also available from your Authorized Reichert Technologies Distributor. Add them to a Quote Request or select Find Distributor to contact a distributor near you. For US government sales, please call 1-888-849-8955 to place your order. 

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Advanced Technology for Accuracy and Repeatability
The Tono-Pen XL tonometer utilizes micro strain gage technology and a 1.0 mm transducer tip. Leading Edge recognition software ensures that measurements are taken only at applanation, while ScanLock tracking rapidly scans the electronic measurement data at a rate of 500 samples per second. This advanced microprocessor technology produces objective IOP measurements that are less influenced by operator bias than Goldmann tonometry. The average of four independent readings, combined with a statistical confidence index, ensure accurate, repeatable, and reliable tonometry results.

Easy to Use
The Tono-Pen XL tonometer functions in any orientation, making it ideal to use on all of your patients including those in beds or wheelchairs. The device activates with the push of a button and results are displayed clearly on the easy-to-read LCD screen. Patients will appreciate the quick and gentle measurement process.

Clinically Trusted
Clinicians worldwide have made the Tono-Pen XL tonometer a trusted part of their practice for nearly two decades. The proven reliability of the device allows operators to take IOP measurements confidently anytime, anywhere, and in any position.


  • 25 years of clinically proven accuracy and reliability
  • Rapid, accurate and objective IOP measurement
  • Functions in any position
  • Portable and extremely light weight
  • Easy-to-read LCD display

Tono-Pen® XL Specifications and Instructional Videos:

  • Catalog Number: 230635 Tono-Pen XL Starter Kit 
    - Tono-Pen XL
    - Carry case
    - 150 individually wrapped Ocu-Film + tip covers
    - One package of four Ocu-Cel XL Batteries
  • Weight: 2.1 oz (59.4 g)
  • Length: 7.25 in. (18.4 cm)
  • Width: 1 in. (2.5 cm)
  • Thickness: 0.875 in. (2.2 cm)
  • Transducer: Micro Strain Gauge
  • Measurement Range: 5 - 80 mmHg
  • Power Source: 2 Ocu-Cel XL batteries


Tono-Pen AVIA® Tonometer

Tono-Pen AVIA Handheld Tonometer is always ready-to-use and calibration-free. Now with Quick-Tap® Mode, for more confidence in less measurements... the most advanced Tono-Pen yet.


Ocu-Film® + Tip Covers (Box of 150, individually wrapped)

Genuine brand Ocu-Film – Protect your patients and your Tono-Pen.


Ocu-Film® + Tip Covers (Bulk Pack of 600, not individually wrapped)

Genuine brand Ocu-Film – Protect your your patients and your Tono-Pen.


Ocu-Cel™ XL Batteries

Power source for the Tono-Pen XL Applanation Tonometer


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