The CheckMate Infidelity Test Kit is a revolutionary home use semen detection test that instantly detects traces of dried semen that can be found in underwear after sex. Sold around the world since 1999 CheckMate detects even the smallest trace amounts of semen and can give you the instant information you need to deal with an impossible situation.
Each CheckMate Infidelity Test Kit can test 5 to 10 items and can be modified to test even more. Plus, each CheckMate test kit can also be extended and made to test numerous items over an extended period of time if necessary too. Checkmate works on any type or color of material without damaging or staining the item in any way and gives instant yes or no results.