PAS is a leading producer of innovative portable alcohol screening systems. The novel sampling system combined with a highly specific platinum electrochemical fuel cell permits both breath and air sampling and model designs that can operate in either a passive or direct (active) mode. The PAS III Sensor ("sniffer") is a non-invasive, non-intrusive passive/active alcohol screening device combined with a high intensity flashlight that enables the operator to check a breath alcohol level without a subject's active participation. All PAS Sensor models are designed to check any person, open container, beverage, or enclosed space for alcohol presence. The products are widely used for DWI/DUI enforcement, and in any place where zero alcohol tolerance mandates are enforced such as schools, correctional institutions, probation and parole, etc. PAS Systems is also a licensed distributor of American Bio Medica Corp's Rapid On-Site Drug Screen diagnostic kits for substance abuse testing.