What is the best co2 monitor for bottles?

Hey guys, I am almost done piecing my room together, and one of the last things on the check list is co2. I went to the store and was coaxed into going with bottled co2 over a generator. I know many people want to sell me on the cost effectiveness of the generators, but as of right now I don't want anymore heat or humidity to my room.

The real question I have though, is, regardless of cost, what is the best, yet most user friendly (simple) co2 monitor available for bottles?

Any help is appreciated.

whenever dealing with fire, and necessary precautions including location of the device need to be made prior to operation. second, this flame will produce some heat and humidity. The humidity is in the form of water vapor, the other by-product of the process. Proper venting and air circulation will help minimize these factors.

there are a few DYI options open to you
MG811 is a co2 sensor for the adruino you can pick up the sensor for bout 35.00 and the arduino for bout 30.00 plug them up input a little code and be good to go and this will be far better and cheaper than any sensor you can buy from a store
it can give you simple info like ppm and then you can set on off time by ppm reading (ie) if the PPM reading is low it will turn on your tank till the CO2 reaches the desired PPM then shut off
you can find code for this all over the net so its not that hard if your not a programer

I'm looking for opinions more along the lines of: sentinel, Titan, autopilot, etc.

again, coat is not a factor, I just want a quality, reliable product.

sentinel chhc-4 was awesome for me worked great for 3 years it has my stamp of approval can get online for 550 usd

Correct sir. It uses fuzzy logic to control your co2 and is accurate as fuck.

best money spent,look for it cheaper though,http://www.sunlightsupply.com/p-14371-titan-controls-atlas-2.aspx