How much does the other carrier sell the ph interface and water sensor.spykes said:ink that is a pretty reasonable price, the only other carrier is selling these at 650 and that's temp, controller, and powerunit only, you end up buying the PH interface and water sensor, 740 seems really good; too bad i dont got the money hehe.
Doc said:how does it work? What reading's do you get? Does it allow you to turn stuff on and off?