ADDITIONAL FEATURESMapping Mode for obtaining and storing up to 33 actual and biased corneal mapped measurements. These measurements can be obtained at any point on the cornea, including the periphery.
"Off the shelf" batteries: The Pachette 4 is supplied with 2 sets of NiMh rechargeable batteries (4 total AA batteries). Alkaline batteries can also be used. A battery charger is included with each unit.