ALLTEST DTH-802 Cannabis Saliva Test Kit
This Saliva test for Cannabis is simple and easy to use.
All necessary equipment is included, along with instructions.
It can detect Cannabis for up to 12 hours after use.
The test kit works by detecting THC residue in the oral cavity. It thus only detects recent use, rather than historic use. Cleansing the mouth can lead to a False Negative result.