PAS Systems International, Inc.'s PAS MARK V high performance evidential breath tester offers features ... a compact professional breath alcohol analyzer. ... Printer Model WPT-1R the MARK ...

Quest Products, producers of the AlcoHAWK brand of breath alcohol screening devices, is pleased to announce the debut of a new breakthrough device in their premier line of Breathalyzer products ...

Some clever maths works out how many micrograms of alcohol are present in the 100ml of breath. This reading is then displayed. The UK legal limit is 35micrograms/100ml but the prosecution limit is 40.

Herein lies problem No. 1 with this mini breath-analysis machine: The readouts register only .04 per cent (half-tanked blood-alcohol content) and .08 per cent (legally tanked and ineligible to drive).