It is fast and easy to use.It is a qualitative  test that cna predict when there is a LH surge,and in turn,when you are likely to ouvlate.Principle:Double antigen sandwichsensitivity:10MIU/ml>99.5%Specificity:>99.5%Sample:Urinepackage:1pc/pouch,100/bag,10000/carton(carton size is 750*440*390 wheight:25 Kg)