The detection that started it all. This kit has been a cornerstone for years in CB Scientific; breaking new scientific ground with each year. This kit will allow you to identify the presence of THC/THCa in most cannabis products.Works with: 1. cannabis buds 2. extracts and oils 3. edibles Each detection kit is packed with three individual tests. Detecting THC is a simple process with the included color chart and instructions card provided in every kit. Our detection kit can detect up to 20% in potency base on a color diagram.