Review on Yosoo Health Gear Tachometer Non Contact by Keith Harris

I returned this product as it did not meet my expectations. I've never used it, but I suspect it works as advertised. However, the ad said the product was a "non-contact tachometer." This can happen after setup is complete. However, in many cases it is not possible to attach a piece of reflective metal tape to a rotating object. Rotating objects are usually guarded for security reasons. To apply tape to a rotating object, any guards or obstacles must be removed to gain access to the rotating object. I wasn't ready, and sometimes it's impossible to dismantle any protective covers/shields. So I returned the item.