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VPD offset
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VPD offset
The VPD on a AC infinity meter says to subtract the air temp from the leaf temp to get your offset, one degree difference makes a .67 change to .77 kpa. Does the vpd change that much from a 1 degree difference? Some leaves measure 72° and some measure 70.3°. What leaves should I average my leaf temp from? Also, my leaf temp will drop when the lights are off, so the offset would change? As of now I’m trying to average the best i can and use it as a guide.
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