Review on 🌡️ Amprobe TMA 21HW: The Ultimate Hotwire Anemometer Temperature Monitoring Tool by Patrick Reid

I purchased this item (sold by Test Equipment Depot) a month ago. It worked when I first opened it. Now there are absurd values (23 m/s) when the protective cover is on (ie it should read 0). Both the manufacturer and the reseller try not to take the blame for this. By the way, folding the telescope probe is quite difficult and requires a lot of effort. I have no doubt that this is a good product but I will think twice. (at least!) before dealing with any of these companies again. I'm a university professor on a tight budget so this is unacceptable. UPDATE: I recognized the problem. The small rubber stopper at the tip of the wand was pushed down and touched the sensor. This led to erroneous results. However, the product is poorly designed. First, folding the wand back is nearly impossible and appears to do permanent damage.