Great, thanks so much. Crashed this morning, flew again and it was fine (cracked and replaced 3 props). So, I drove 30 miles or so to a great spot, put the landing extensions on and got the ESC 3 error. So I came home, tried it out with no extensions, and it flies fine with no ESC error. I have my Mavic skinned... I wonder if the back clamp-on type extension did something. All 4 motors were hot to the touch after flying here at home though. I hope that's not a bad sign. It flew fine.
Yeah it might work, but you need to find a hole in the Mavic to stick the probe in to. Kidding.
Here's one on Amazon Prime and they dont get much cheaper than this with a backlit LCD display. It is a non contact gun with laser pointer so you can see exactly what you are pointing at. Just remember that if it's going to sit for a month or more, take the battery out so it doesnt leak:
It may be worth doing some research on "temp gauges". Pretty much anything that measures temperature may be referred to as a gauge. The one pictured is an infrared thermometer and these can be a little tricky to understand and use. For example, the emissivity* of the object being measured needs to be programmed into the thermometer for an accurate reading and in order to do that the emissivity must be known. In my experience, which I admit is limited, I have found myself guessing at the emissivity of objects. Although charts are available they may not include the material being measured or determining the kind of material may not be so easy or apparent. HTH.