by Ben Barnard

Less than a decade ago, nobody paid much attention to carbon monoxide poisoning in the cockpit. Indeed, only one company made a so-called biomimetic patch detector that turned black in the presence of carbon monoxide and few owners even bothered with them. But the advent of cheap, sophisticated electronic detectors and a couple of high-profile accidents in which leaky heater muffs were implicated changed all that.

Now, you can buy a range of CO detectors suitable for the cockpit, ranging from relatively inexpensive portable devices to at least one panel-mount device that combines CO detection with a clock, voltage monitoring and other functions. Since we last reviewed detectors, some…