ok so thinking of investing in a co2 generator and a decent timer to run in conjunction with my exhaust fan. and while im out shopping im on the hunt for all my gizmos ph meter, ppm meter, co2 meter and 1 for temp and humidity or any combinations there of. any suggestions for any must have's i want to get my design and plans nailed way b4 i start as i wan to play around with the environment for a week or so, so i can get used to adjusting things like co2 levels temp and humidity b4 i plant.

1 last thing b4 i go shopping i'm THINKING OF USING 2X200W as the are cooler running HAS ANY 1 USED THESE OR HAD GOOD OR BAD EXPERIENCES or should i stick to mh and hps:hippy: peace out ppl