I bought my Maverick ET-732 less than a month ago and it is already malfunctioning. I have only used it to cook 2 pork shoulders and 2 spatchcock chickens, so the temp has never been above 300(The box states that it is rated up to 500). Last night I prepared a brisket, trimmed it up, seasoned, fired up the egg and once I had my platesetter, and grid on I attached the grid probe and was about ready to start smoking and the temp was flashing "LLL." I assumed that this meant low batteries, and figured I would go out and get them once we meat was on. I stabilized the Egg using the gauge, and put the brisket on, putting the other probe in the meat. after about 5 minutes the grid temp was bouncing from 300+ to 68 degrees! It was 80 degrees outside! I replaced the batteries and retired and then it beganflashing HHH. The meat temp was working, but it was the grid temp I was worried about since it was an overnight cook and I knew it wouldnt be ready until around lunch anyways. I am very disappointed in my Maverick, especially after reading so many great reviews on here. Has nobody else had this problem? It was disappointing especially considering that this was my first brisket so a lot of time and research have gone into trying to make everything perfect, just to have my thermometer crap out at go time! I will call customer service and see if there is anything they can do for me. From the post earlier it sounds like they are pretty good. I will keep yall updated!