Im running an EheimProfessional 3 Thermofilter2180. The temperature display seems to be consistently off by about 2 degrees from my other thermometers. Has anyone else had any problems with the 2180?
I have two floating thermometers... One is a Topfin the other I'm not sure I have had it for a long time but it could also be a Topfin. I'll have to try a different brand and see what happens.