Used to measure corneal thickness, the DGH Pachette 4 is a reliable solution to provide accurate and easy to obtain results. With a new and upgraded memory system, the Pachette 4 stores multiple patient records with Bluetooth technology. Features include: Records and measure up to 25 measurements in a fraction of a second Includes audible feedback to ensure that a valid measurement has been recorded. 2 line LCD screen for viewing current measurements Personalized memory and settings Durable casing with a detachable probe to make it a portable solution with a minimum lifetime of 10 years Uses rechargeable/off the shelf batteries or AA batteries