Curt, sounds like a defective probe. Ive had 5 probes now and when they were working, they read temps pretty accurately.
tbh690, I know what you mean. I was indirect cooking BCC and had the wires running over the smoker box of my Summit D, got the HHH signal within minutes. Now I run the probes out the vent in the back of the grill and not over any heat source. Havent had any problems. These wires cant take any type of direct heat.
As to your original question, if you need something to meaure food temp when you are direct cooking, see my comments above. I dont have an accurite so I cant vouch for their claim. If I am smoking or indirect cooking, I like the multi probe function.
Louie aka Caveman Cooking Over Fire.