Recently got reminded of this video I did about a year ago showing the gross inaccuracy of the Accurite lightning sensor. Had a storm pop up while I was at a dog park, and had the sensor with me. Strikes were generally within a couple miles. Sensor consistently said really far distances - 10 or more miles when really close.
Decided to video it. I have an obviously clean cloud to ground strike that was right about a mile away - ~5 secs flash to bang. Sensor said 9 miles. I called Accurite, and explained that the thing was showing info that was just plain wrong. Got an answer from the list
of "what to say when they have no clue about the product" that was along the lines of it must be picking up noise or something. Hey, I was outside, in a park, in the open with no buildings or other electronics around. Probably as close to the perfect, intended environment for this as you are going to get.
https://1drv.ms/v/s!Al2OT6PFWa6Ik0XmPrLqx-_cLTwQ