LOVEXOK HCG Pregnancy Test Productions are manufactured in the Highest Quality Standards.They are 99% Accurate. The pregnancy test detects the presence of Human Chorionic Gonadotropin ("HCG"),Which appears in urine very early in pregnancy. Features: All tests over 99% Accurate.Easy to use.Sensitivity higher than 25 mIU/mL. Attention: 1. Storage: 4 °C to 30 °C; avoid light, avoid hot, not frozen, in dry place. 2. Immerse the strip into the urine sample for at least 5 seconds (the arrow end should point towards the urine). Do not immerse past the MAX (Marker Line). Place test strip on a non-absorbent surface after 5 seconds. 3. Read the result at 5 minutes. Do not read results after more than 5 minutes.