Nice controller, though very simple. Setpoint is adjusted with small dial, and ORP is not shown if above setpoint. Very functional and well worth the money.
Great product By Jeremy Hepburn on 4/22/10
Jeremy Hepburn would recommend this product to a friend
I am using this with my Ozotech unit. Works great. Only downside is serpent starfish like to get in the bottom of the probe. If they touch the probe your ORP levels go up by 50-100mv.