Exhaust gas analyzer of this sensor and to create smaller devices.Typical NDIR sensors cost in the (US) $100 to $1000 range. Used by older aircraft, the Cambridge Mixture Indicator displayed air-fuel ratio by measuring the thermal conductivity of exhaust gas. It was manufactured by the Cambridge Instrument Company. This device was installed on airplanes in the 1930s, including the Lockheed Model 10 Electra flown by Amelia Earhart on her last flight. 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
What Car? car if they drive it gently and stick to speed limits, but don't resort to any unrealistically slow acceleration or special hypermiling techniques. These True MPG figures are published alongside the official government fuel economy data, that car manufacturers are legally obliged to include in brochures. In June 2012, "What Car?" launched an online car buying service called 'What Car Approved Used', which it claimed provides "peace of mind" to car buyers, by endorsing the "10 Points of Difference" promoted by the "National Franchised Dealers Association". The agreement came to a close in July 2015, and "What Car?" began to