... Paper, plastic, glass, mental, and ceramic INFRARED (IR) LASER TEST CARDBy converting kinds of invisible near infrared wavelength beam into ... glowing color, high concealing ability and reliability, easy test and long lifetime etc. It functions with 1mW of IR Laser sources ... 530-560nm; Paper, plastic, glass, mental, and ceramic material test cards are available; Specifications, shape, color etc. can be ...