PAS Systems International, Inc.'s PAS MARK V high performance evidential breath tester offers features found on more expensive models and packs them into a compact professional breath alcohol analyzer. It is specifically designed for law enforcement road-side testing and evidential breath test applications in the work place. In conjunction with the MARK V Thermal Printer Model WPT-1R the MARK V is a cost effective work place NHTSA certified EBT. Providing the latest in platinum electrochemical fuel cell sensor technology, the MARK V ensures fast, precise and accurate measurements. The mouthpiece design allows insertion from either side of the unit. This multi-function mouthpiece provides easy personal testing converting the professional grade EBT into an accurate "easy to use" Personal Breath Tester.