The Cut-off level for this item is: OPI 2000 ng/ML. I always include an insert with instructions for use.
Cocaine Drug Test Kits - FDA Cleared -Pack of 20 Tests
8 Panel Drug Test Kits (Pack/100 cups) - Highest quality! Ovus Medical
Clinical Guard Ovulation Test Strips Pack of 20 - Accurate Measurement Within 5 min - Ovulation Tests Cost-Effective Fertility Test for Women
Fentanyl Test Kits - Pack of 10- Ships free from USA
Inito Fertility Monitor Dual LH Test Strips | Pack of 20
Easy@Home Multi-Drug Screen Test, 10 Pack Marijuana & Nicotine Urine Drug Test Kits, Testing for THC and Nicotine Metabolites Cotinine(COT) in Urine, Accurate Home Drug Testing Kits, EDOAP-124
