I've bought cootwo last June and recently found out that it gives incorrect readings: e.g. 88% for 100% oxygen and 25% for 28% nitrox (the higher the O2 content the bigger the difference).
so the oxygen sensor lasted for just half a year, which means that either my particular cootwo was lying in the warehouse for more than 6 months (thus giving the full one year of sensor life) or the oxygen sensor is faulty.
the point of my topic is: you should verify your gas mix with two different analyzers if you plan to stay close to MOD for prolonged period of time.
P.S. CO sensor is still working correctly - verified with different analyzer.
so the oxygen sensor lasted for just half a year, which means that either my particular cootwo was lying in the warehouse for more than 6 months (thus giving the full one year of sensor life) or the oxygen sensor is faulty.
the point of my topic is: you should verify your gas mix with two different analyzers if you plan to stay close to MOD for prolonged period of time.
P.S. CO sensor is still working correctly - verified with different analyzer.