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So my grow tent comes with a hub to monitor temp, RH and VPD. Obviously, you can't rely on 1 measurement tool, so I have 2 thermo/hygrometers, 1 inside my 4×2 and 1 outside so I can calibrate as needed. Now I know VPD charts are out there, but I bought an infrared thermometer to get average canopy Temps and put it into link text to make sure I'm in "optimal vpd range" My grow tents hub although, is saying im higher than where the chart is. Should I go off the chart, or go off the hubs reading? I feel that the chart is more accurate.
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