This is the second batch of these i bought, thought I’d give them a second chance, but what a waste of time and money.  The First set  I only use them for smoking so the temps never get that hot. Two of the meat probs started reading almost 100 degrees too high.  The second set came, but I have to be honest I just don’t trust it so I’m back to me old 20$ probes that have been working wonderful for 8 years no problems.  The other major issues that make this product so unreliable are the main unit constantly drops signal and you have to reset it and hope the probe are correct second the distance is horrible by the time it’s connected you might as well go outside and check yourself with a good calibrated probe