D-KAT
Digital Goldmann applanation tonometer
Digital Goldmann-type applanation tonometer for H-style (tower-illumination) slit lamps that shows IOP on an LED display to one decimal place. Available as R-type, which stays on the slit lamp and swings into position, or as removable T-type.
Serviced by manufacturer-trained engineers. New devices include two years of free service – only the engineer's travel is charged.
Highlights
- Goldmann method: IOP is derived from the force needed to flatten a defined corneal area
- LED display that stays easy to read in a darkened examination room
- Runs on a standard AA battery; self-test at power-on
- Works with re-usable Goldmann prisms or Keeler Tonoclear single-use prisms
- Calibration arm supplied; designed and hand-assembled in Windsor, UK
Technical specifications
- Calibrated range
- 5–65 mmHg
- Measurement deviation
- ≤ 0.49 mN or ≤ 1.5 % of the reading, whichever is greater
- Hysteresis
- ≤ 0.49 mN
- Display
- LED, 0.1 mmHg resolution
- Power
- AA battery
- Versions
- R-type (fixed, swing-in) / T-type (removable, guide plate)
- Compatibility
- H-style slit lamps (Haag-Streit type); R-type also some Zeiss-type
- Weight
- 0.58 kg (R-type) / 0.37 kg (T-type)
- Standard
- ISO 8612:2009
- Medical device risk class
- Class IIa
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