Patent ID: 9103818
Filing Date: 2015-08-11
Classification: G01N

Abstract:
1. A pre-calibrated replaceable alcohol sensor module, comprising: a printed circuit board (PCB); a breath alcohol sensor configured to receive a breath air sample and to measure blood alcohol concentration (BAC) based on analysis of the breath air sample; a non-volatile memory unit for storing pre-calibrated data of the breath alcohol sensor module; and an electronic circuitry mounted on the PCB and operable to transmit measured BAC from the breath alcohol sensor to a signal processing unit of a breathalyzer and operable to transmit the pre-calibrated data of the breath alcohol sensor module from the non-volatile memory unit to the signal processing unit of the breathalyzer to provide measurement of the breath air sample; and wherein the pre-calibrated replaceable alcohol sensor module is installable in the breathalyzer to replace existing pre-calibrated replaceable alcohol sensor module in the breathalyzer after being used for a predetermined number of times.