±1.5mmHg(3mmHg≤intraocular pressure≤25mmHg). ±2.5mmHg(25mmHg＜intraocular pressure≤70mmHg;. It`s a handset device: small, portable and proven to be accurate by several independent clinical studies. Transport and Storage ). Leia Mais »

The Nikon Retinomax K-plus 2 refractometer is a high-quality medical and laboratory instrument designed for precise measurements as an autorefractor, keratometer, and tonometer. It needs new batteries. It includes all its accessories, but the battery is missing. It has been stored for a long time and has not been tested. Leia Mais »

Perfect reading of the scale with red pointer. Supplied with three weights (5.5 g, 7.5 g, 10 g) and a conversion table. Leia Mais »

A/C is included, but no other accessories included. Great used condition. Has been powered on, buttons function, and the device passed all tests. Very minor scuffs and scratches from previous use. Leia Mais »