Re: HD5 Temp. reading
The soft reset is the same on all HDS units.
As for the temp. reading 2 degrees high, does that really matter? I use temp readings to find temp changes in a creek arm for example. It doesn't matter what the exact temp is, it matters that you have a temp break. Besides if you are asking someone near you what their temp says and assume yours is wrong, how do you know, maybe theirs is wrong.
The fish don't do the same thing at an exact water temp anyway so use temp for reference. Go fishing and let the fish tell you exactly what's going on. Another thing to think about is that the temp of the water down where your fish are varies from surface down in different variables.