YIOU Wireless Digital Meat Thermometer

Within a few days of beginning to use the thermometer one of the probes began to malfunction. I went through the trouble shooting guide and got it to work. About a week later I used the thermometer again. The same probe malfunctioned as well as another probe. I did the trouble shooting and installed new batteries. This fixed the issue. I tried to use the thermometer again a couple weeks later. Only one probe seemed to function properly. However, whenever the temp was compared to my pit boss probe it was low by 9 degrees. I reached out to Amazon and the company for a replacement but was outside the return window. I am stuck with this useless POS. Follow up. None of the probes function. The so called trouble shooting to fix the issue did not work.