LF aquacontroller jr temperature probe

[TrailFish]

I have the Aquacontroller Jr. as well. The port for the temp sensor on mine is a small version of a phone jack. Is this the same as a "phono jack" in the description of the "pro" version?

I've gone through two temp sensors over the years and I have found them to be unreliable (on my unit anyways) and I no longer trust them to control fans or heaters any more. I was getting very erratic readings one day 78 the next day 68 causing my heaters to overheat the tank. Could be the controller...as I can't imagine that the sensor would need to be replace very frequently (if at all). My back up electronic thermometer sensor has been working for years. I keep a floating thermometer in the sump just to double check every so often...once bitten.

Just my 2 cents.