... waterproofcommon waterproof, super-waterproof, sigle side waterproof and double-sided waterproofSurface Quality(Scratch/Dig)80/50, ... !5. ApplicationsInfrared monitoring and thermometer, IRD infrared detector, license plate recognition, medical monitoring and nursing, car security ranging ... camera, lasr night-vision, outdoors and square, infrared ink recognition, etc.6. Principle of ion ...