Unpacked my MES40 I've had for a couple of weeks yesterday, set it for 240 for a couple of hours to burn off the oils inside. I have a Taylor instruments digital probe that I use with my Bradley and I trust it as the temps stay with 1 degree plus or minus beside my PID.
I put a big spud in with MES probe and the Taylor probe close together in the center, Throughout the 2 hrs the Taylor registered 6 degrees higher than the unit's probe which is not bad, what can I expect as far as the cabinet temps indicated on the digital readout on the unit and actual cabinet temps.
I put the taylor probe near the heat sensor in the cabinet and got a 30 degree difference but then this is not a good way to measure it. I read somewhere the cabinet temp may be off 20 degrees, just need a ballpark figure to start out with, thanks.