D KAT - Keeler Applanation Tonometer - 'Zeiss Type-Z'

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D-KAT Z-type the world's first Digital Applanation Tonometer

Digital Applanation Tonometry for your Zeiss type Slit Lamp.

Keeler have been leading the way in optical innovation for nearly a century and the latest addition to the Keeler range of tonometer's is no exception.

Keeler are proud to launch the world's first Digital Applanation Tonometer designed specifically for Zeiss type Slit Lamps. British made, the D-KAT Z-type is reliable and easy to use, providing tonometry at it's very best.

The D-KAT Z-type operates according to the 'Goldmann method', by measuring intraocular pressure from the force required to flatten (applanate) a constant area (3.06mm) of the cornea.

The LED display enables ease of use in darkened environments, whilst the internal electronics allow for the fast accurate measurement of IOP.

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The D-KAT is an accessory for the 'tower illumination' style of Slit lamp.

Whether you chose a T-Type or R-Type or Z type version, your Keeler D-KAT will come with all the items you need.

Each unit contains a calibration arm and a re-usable tonometer cone. You will also receive a guide plate or connection post depending on your choice of D-KAT.


  • Keeler manufactured
  • Keeler quality
  • Tonometry at it's best
  • British built
  • LED display for ease of use in darkened environments
  • Lightweight and portable
  • Display reading to 1 decimal point
  • Low battery usage
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