I have a raspberry pi reading mavlink messages from a pixhawk. When I read SCALED_PRESSURE I get hPa values around 490  - less than half of what I would expect - and a temperature around 4834 in cdegC - seems warm to me. This is consistent with what is shown in Mission Planner (see below). 

Is this normal or is my barometer on the fritz? I am trying to calculate my own altitude like AP_Baro::get_altitude_difference but in a companion computer.

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