“This works great for the most part, however there are times the tester gets errors & the most frustrating part is he can't get in touch with customer service for help.”
“It works pretty well for the most part. Sometimes has trouble loading results. It is also overly sensitive. I work in a brewery and it can pick up a false reading from the air around me.”
“Backtrack has enabled my son to maintain joint custody of his children by giving him a tool to prove sobriety and an efficient method for maintaining accountability.”
