I bought two of these on separate occasions. I don't use them in my tanks anymore. They both seemed to work fine for a while. Then, suddenly, they would shoot up to 90+ deg. I tried re-setting them. But, the same thing happened again. I only use them now to heat water for a water change in a separate container. I have been meaning to try the, more expensive, digital ones to see if they are any better. My experience was with the Ebo-Jager style with the dial on the top. Too bad...you can't beat the price. I guess you get what you pay for. Just an expensive gamble imo.
Last edited by Gtdad2; 02-10-2013 at 02:50 PM.