my cootwo let me down

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Location
Austria
# of dives
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I replaced the obiwgen sensor and calibrated calibrated O2
I got some 20ppm CO calibration gas and calibrated the CO sensor, as my COOTWO read CAL in the CO display
Three days later I flew to Egypt on a LOB
Wien I tried to test my. first tank the CO reading read? Replace sensor.
Why die IT accept calibration three days earlier?
 
No, I did not, how can I check CO lifetime expectation?
 
You can only check the last recorded sensor replacement date. I think it is in the same part of the app that shows calibration history.

It does not estimate the life remaining. Once it reaches replacement date + 24 months, it marks the sensor as expired.
 
At least yours worked, I received mine, day 1, doesnt start up at all, charged for 12 hours, still doesnt start up, nothing on screen, and yes battery is making contact with 3.7 v. lame product.
 

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