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Interesting, I sure hope my unit isn't defective. I must also say I am upset that such an expensive unit isnt able to keep a rooms co2 ppm in check which is the main purpose of the unit. Or at least why I purchased it. So defective or just due to the fact that my tent is small...both answers...

Hmmm... thanks stems!!!u That is what I needed to know. Makes sense I guess, I do have a rather small tent. My next question about the chhc-4 is how fast the Chhc-4 's sensor adjusts to the current conditions? As in, every time the unit flashes through the temp, humidity, and ppm levels is...

Anyone? Fuzzy Logic is on... I took the unit outside and booted her up, let it sit by itself for 20 minutes and then followed the instructions to calibrate it again to the 380ppm setting. I then let it sit for 20 more minutes and the reading between 374-376 but at one point it did drop to...

Thanks, everybodydoesit, I appreciate the feedback. The unit is set to fuzzy logic mode so that is not the issue. When i calibrated the unit it was in the lower tent with lights out and no plants, just closed off in the tent. The instruction manual says to have the sensor outside for...

After I cleaned up where the ballasts/exhaust fans/co2 tank/controller timers etc. Close up of the CHHC-4 Controller which is totally new to me and I am having issues getting the co2 ppms stable and to not go above what I set it at which is puzzling me so if anyone on here has experience...

Hello all! I am finally legal and starting up in the growing world again. I will do my best explaining my setup and providing pictures when I have them or when needed to keep this journal interesting. I am a fairly seasoned grower with 5 harvests under my belt on and off over the years...

I am getting my flowering tent setup and am havibg a couple of issues. I am flowering in a Secret Jardin dr120t a twin tent with a clone/veg tent above an a lower flower tent. Tent dimensions in the bottom flower tent are 4x4x5. I am lighting it with 2 430 watt hps hortilux bulbs powered by...