Still would like to be able to either calibrate the thermometer or be able to select an offset from the factory value. I know this is a good thermometer that is permanently calibrated at the factory, but at least the one I have reliably reads ~ 1C higher than every other thermometer I have tried from the cheap glass ones with suction cups to a pretty decent Pinpoint unit. Obviously it is relative change in temperature, not the absolute number, that is important in controlling heaters, chillers, etc. But temp also has a major impact on the salinity determination and therefore I cannot get this accurate -- if I use the probe temp for salinity, it is off; and if I select a manual temp it will usually be off too.