Patent ID: 9562890
Date: 2017-02-07
CPC Classifications: G01N

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