Over one million tests sold and performed since 1999!
CheckMate is the revolutionary home use semen detection test that instantly detects the 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. Designed specifically for the accurate testing of undergarments for traces of semen while inside a marital or relationship setting.
Each CheckMate semen detection test kit comes with everything you need to test 5 to 10 items of clothing for the presence of semen, and CheckMate can even be extended to test more items if needed. Works on any type or color of material without damaging or staining the item in any way. Second test kit included free in every box.