i purchased LM111 main display module from troy and it works flawless ...age is unknown on this one but again its in a perfect condition and very accurate ....i even send it to sectrapure and had it motor and tubing replaced costed me more 100$$ to get it back...
i purchased 2 slave modules from brs roughly about 1 1/2 ago....never malfunctioned or gave me any problem ....
i am asking $$350 for this or trade for a nice calcium reactor setup..
thanks