The UTest Single Panel Meth Drug Screen detects methamphetamine at 1000ng/ml. This drug test is consistent with GCMS confirmation levels. Detects methamphetamine at the industry standard of 1000 ng/mL, giving your customers the assurance to pass a standardized test. One step, easy to use, self testing device. The manufacturer offers customer service, clear instructions & test interpretations on the packaging. Made in the USA.