Over 99% Accurate - More than 99% accurate in detecting 4 substances according to the designated cut-off levels: THC 50 ng/mL; COT 200 ng/mL; EtG 300 ng/mL; FTY 20 ng/mL Easy to Use / Instant Result - Each test is sealed in individual pouch for easy carry and sanitary. It is easy to use and administer. Dip the test in urine for 10 seconds and read the result in 5 minutes. 2 lines appears if clean; 1 control line only appears if not clean. This test is for human urine sample only, and no other liquids such as water or beverages should be used as the testing sample. Multi-Scenario Usage - Ideal for workplace/ Teens screening at home / Pain Clinics/ Rehab Center / Criminal justice Law enforcement/ Lab screening test Peace of Mind - Test yourself, your staff or your family member regularly to know when you or thrugey are dsafe to take official tests at work, school or any other institution.