Check the listing for details. Marijuana (THC) Surface Residue Pouch Drug Testing Device. Condition: New. Listed at 6.19 USD. For the Identification and Detection of Non-Visible (trace) and Bulk amounts of Marijuana on any SurfaceThe Marijuana Test is designed to detect THC found in marijuana. The detection for THC means green plants do not create False Positives. Detection includes THC, Marijuana, Hashish and Hash-Oil & Vape Oils.Product Description:Designed to detect trace & bulk amounts of THCEasy-to-use pouch provides industry leading presumptive testing results.Handheld field test...no calibration neededSealed system eliminates contaminationRemovable Swab for acquiring sample or particulateAutomated results using a Mobile App that uses advanced algorithms and colorimetric technology.Mobile App provides cutting edge technology that allows the results to be analyzed with most smartphones. Just download the app from the Apple store or the Android store Instructions:3 Step Process...Swab, Crush and View ResultsResults are Instant and Automated using the free Mobile App to eliminate human errorsThe Mobile App can also be used to confirm the manual determination of the pouch results by adding a reliable, consistent electronic interpretationThe list of drugs detectable with this test are as follows: Hashish Hash Oil THC Vape Oil