The DrugCheck® K2/Spice on-site test is the most sensitive K2 screening device on the market, detecting JWH-018 and JWH-073 at 25 ng/mL. The -018 and -073 compounds are used in the majority of synthetic marijuana products. In fact, 98% of K2 presumptive positive samples tested at a leading lab during 2011 contained at least one of these two compounds. DrugCheck® K2/Spice also screens for JWH-210, JWH-398, and MAM-2201, giving it the widest range of screened K2 compounds. This product is for FORENSIC USE ONLY. Call 803-932-0818 if you have questions.