hCG Pregnancy Test Cassettes are the most effective way of detecting pregnancy. Pregnancy Urine Test Cassettes measure the level of pregnancy hormones in the urine with results of over 99% accuracy. hCGTest Cassettes detect levels of HCG as low as 20 mIU/mL within just 2 to 5 minutes. hCG Test can be used by simply transferring two drops of urine into the round well with the dropper, and then wait to read the results. Each cassette is sealed in individual foil pouch.