The CheckMate Infidelity Test Kit detects traces of dried semen on clothing within 5 minutes or less. CheckMate is the revolutionary, home-use semen detection test kit 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 instantly provide evidence of infidelity or rape.


Guaranteed 100% effective. Each CheckMate semen-detection test kit comes with over half an ounce of our patented reaction component, as well as everything else you need to test numerous items of clothing for the presence of semen. CheckMate also test items other than clothing.


Does not stain. Works on any type or color of material without damaging or staining the item in any way.



  • Quick and easy multiple use kit performs 5 tests
  • Results in 5 minutes or less
  • Designed to work on any type of material
  • Will not damage or stain the material being tested
  • Guaranteed 100% effective



  • 1 x Infidelity Test Kit
  • 1 x Instruction Booklet


*Please note the following:

  • Due to the nature of this product we will be unable to accept returns of ANY opened packaging. 
  • The currently listed retail price for this item is the MAP price

Check Mate- infidelity Test Kit