I just got a Anova Precision Cooker WIFI as a gift last night, although after some initial use, I am curious if I have a defective unit. This is my first sous vide device, so I am not entirely sure if there is some adjustments to my method that need to be done, or if the unit needs replacement.
Did a little more experimenting and I think the poor performance might have been from the outlet it was plugged into. Tried a different outlet in the kitchen and performance seems to be better and without all the dips. Will experiment with it a bit more to see if that is the case.