It’s not the lows, it’s the highs and average more. 22c when? Cause 28-32c is more what is needed as a day time temp. specially with a system like an LED not heating surfaces such as leafs with IR in its SPD.
NO. VPD is a calculation based on temp and RH. There are no extra sensors needed. The same way any system showing VPD does it. Reads out right on the screen.
What's VPD.. ......?. lol
? i know VPD is calculated via ambient temp, leaf temp and humidity, i never said it wasnt?, i never said you needed extra sensors? although you could do with a infra red camera like my dimlux set up uses for true real time VPD monitoring.
Try looking at what trolmaster is then bud. It can control anything you want. Temp, humidity, AC's, dehu's, irrigation pump, fans, humidifiers...integrated PAR sensor almost released...but hey...why look it up right?
yer i think they will come eventually, like you say a small temp and humidity sensor and a way of inputting leaf temp offset wouldn't be hard to make.
lol i have looked, i have downloaded the manual for the hydro x and it didnt mention VPD?, am i missing something? if i am be a gentleman and point me in the right direction.
Indeed i do. At that point i couldnt find it in europe and im leary of international warranties and sending things back and forth over the sea. We now have distribution here and very helpfull reps. Its going into our new grow, thats for sure. But i also see a niche in the market for a hygrometer with vpd, something cheap you can spread out over/in/under cannopy, i mean its just a simple calculation and shouldnt add 100$. But were were ge away from the red stems subject.
