pH controller recommendations

Can anyone please give me some suggestions for a good all in one pH controller.

My requirements are that it includes two dosing pumps (1 for up and 1 for down), can interface with a PC for remote access and data logging. Also the probe should be included as well.


Also if you have any recommendations for a similar unit that does EC/TDS that would be appreciated too. :S5:

http://hannainst.com/usa/prods2.cfm?...%2021%20Series

bghydro.com has exactly what you are looking for.



b0nger