Used Tonometer Topcon CT-10 120 day warranty In great working Condition. The CT-80 Computerized Tonometer makes intraocular pressure measurements easier and more comfortable than ever before. It features a 30% faster measurement time, a triple patient safety function, and a dual sensor measuring system. Innovative dual sensor system for accurate measurements Triple patient safety function New alignment bar & improved air cylinder reduces the interval time between measurements by 30% Built-in printer Fast, easy and accurate intraocular pressure readings Internal fixation target Auto measurement