Ovulation Test Strips gives women a greater chance of detecting their fertile days, even if their cycle lengths are variable. ME3511 LH Urine Ovulation Test Strip measure the level of Luteinizing Hormone (LH) in the urine with results of over 99% accuracy. Ovulation Test Strips detects levels of LH as low as 20 mIU/mL within just 3 to 5 minutes. LH Rapid Test Strips can be used by simply dipping the test strips into the urine sample for several seconds, then wait to read the results. Each test strip is sealed in individual foil pouch.