Exhaust gas analyzer Exhaust gas analyzer An exhaust gas analyser or exhaust CO analyser is an instrument for the measurement of carbon monoxide among other gases in the exhaust, caused by an incorrect combustion, the Lambda coefficient measurement is the most common. The principles used for CO sensors (and other types of gas) are infrared gas sensors (NDIR) and chemical gas sensors. "Carbon monoxide sensors are" used to assess the CO amount during an MOT test. In order to be used for such test it must be approved as suitable for use in the scheme. In UK a list of acceptable exhaust gas
What Car? best models to buy, and this has since been an annual – and eagerly awaited – feature. In 1996, the website www.whatcar.com was launched. More recently, "What Car?" launched another print edition in 2006, published in India every two months, which subsequently became a monthly publication. "What Car?" was featured in the movie "Early Man" (2018), though titled "What Chariot?". Every year in January, "What Car?" hosts an awards ceremony, where it names the best cars in each sector of the car market, and an overall Car of the Year, with the Renault 20 receiving the inaugural award in 1978.