Overview Tono-Pen® AVIA® Vet™ Veterinary Tonometer with a completely portable unit for measuring intraocular pressure.

  • Built on 20 years of accuracy, reliability and ease of use
  • No daily calibration
  • Measurement range 1 - 99 mmHg
  • Large, easy-to-read LCD on both sides
  • Right- or left-handed operation
  • 4x longer lasting lithium-ion battery with over 2500 measurements