Room-level VPD readings only tell you part of the story, what matters most is the VPD right at the leaf surface. The AC Infinity VPD Thermometer is a handheld infrared meter that captures leaf temperature, ambient temperature, humidity and VPD in a single point-and-read.
It uses 12-point laser positioning to keep your reading accurate even at a distance, and lets you adjust emissivity to match different leaf surfaces for a properly calibrated result.
It automatically saves your last 5 readings, so you can track how conditions are trending through a grow cycle, not just what they are right now.
Room sensors like our CloudCom Thermo-Hygrometer give you a great overview of your tent's climate, but leaf temperature can run a few degrees below or above ambient. Spot-checking with a handheld meter helps you catch stress before it shows up as a problem.
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