CO Guardian introduced a new multi-function Carbon Monoxide Detector, Model 552, at Oshkosh. Though the primary function of the unit is to monitor CO levels from 30 to 999 ppm, providing an audible alarm if the count rises above 50 ppm for more than five minutes, there is a whole lot more to this diminutive collection of computer chips and sensors. Designed to replace a standard 2-1/4" instrument panel clock, the Model 552 features a 12-hour and 24-hour format clock with the additional capability of automatic flight timing and stop watch functions.

Add to that pressure sensing that triggers an alarm when cockpit pressure reaches 10,000' and again after 30 minutes above 12,500' or upon reaching 14,000'. The 85 db alarm can easily be heard, even with noise-canceling headsets in place. There is also a built in tone generator for audio panels, which gives additional peace of mind.

The system keeps track of aircraft voltage, sounding an alarm if levels exceed high or low levels for the aircraft. A built in temperature probe and an outside temperature probe keeps track of both types of data. The instrument also calculates density altitude, providing readouts on the ground for takeoff analysis. RS232 output, CO level, cabin pressure and temperature will display on UPSAT CNX80.

"Technology has reached the point where most instruments can be multi-tasked," said CO Guardian President, Ash Vij. "Our objective with the Model 552, was to combine a number of functions that will provide pilots with useful information. The primary objective, however, is to avoid the possibility of having lethal or debilitating levels of Carbon Monoxide accumulate inside the cabin. You cannot rely on the human nose to sense CO danger... it's odorless. But with the 552, CO is no longer a threat and the pilot has a number of other useful benefits at his fingertips."

FMI: www.coguardian.com