Keep your door lock clean

Door lock can easily build up dust, dirt, oxides on magnetic head, and sensors, it will cause misread and read failure. It may effect your service quality and reputation. Customers always hate waiting, they may annoyed on that.
IPA Pre-saturated CR80 Cleaning Card is designed to clean the magnetic head and sensors in door lock. It can easily remove dust, dirt, oxides from door lock. It can reduce your costs of the maintenance, and improve your service quality.
Simply swipe or insert the Cleaning Card through the door lock for 4 to 5 times, and wait for about 1 minute to let the door lock to dry.
Recommended use is once per month for low usage, and once per two weeks for high usage.