I recently got a used m2 off here and it came with a digital gauge and it’s set to kpa instead of bar. The owner told me he had it switched before but we can’t figure it out. Anyone know how? 
Huma-air digital gauge kpa unit
- Thread starter lose_money
- Start date
Do you know if that's an Orcair gauge? Can you try hitting the on/off button quickly when at a bar readout screen?
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