Like any electrical equipment, your PIN-entry device needs to be cleaned with care. To avoid damaging your equipment, you must follow the instructions below.
Devices should only be gently cleaned to remove dirt, residue or debris using a lightly water-dampened, clean microfiber cloth. One or two drops of pH-neutral, non-scrubbing soap may be used. Do not use solvents, harsh detergents, or abrasive cleaners.