The handheld Tono-Pen XL Reichert Applanation Tonometer is easy to use and provides fast and accurate IOP readings that closely correlate with Goldmann Tonometry. It features a lightweight, ergonomic design, an easy-to-read LCD display, and functions in any position. 25 years of clinically proven accuracy and reliability Rapid, accurate and objective IOP measurement Functions in any position Portable and extremely light weight Easy-to-read LCD display