Infrared Thermometer for measuring VPD

For all of you that are interested in dialing in your grow by knowing your VPD then it is a good idea to know the leaf temp too. This handy device will give you both Celcius and Fahrenheit and is as simple as point and shoot!

This is quite a good Video explaining VPD and a calulator is in the description.

Humidity 102: Vapor Pressure Deficit — VPD Chart – Bing video