Touch saliva alcohol test is a membrane strip type device based on enzymatic reaction. All assay reagents are embedded in a square shaped paper reactive pad. The test procedure simply involve touching saliva in the mouth or in a saliva container to allow saliva to be absorbed into the reactive pad. The test result is visually read by comparing with a color chart on the aluminum foil bag.

It may take seconds for a positive result show, however, a more accurate result is read at 2 minutes.

The device is individually provided in an aluminum foil pouch and is stable at normal room temperature for more than eighteen months.