Great unit so far - FLIR Scout PS-32 Thermal Handheld Monocular

I have only had the unit for a month but I am impressed with it. Power-up is reasonably fast. Like others I was concerned with an internal battery but I have used it up to 3 hours continuous with no problem. The InstAlert is great. I had another thermal unit of equal price but different brand. The image quality was not as good and the unit failed after 6 months. I am sold on the FLIR brand for quality in thermal imagery.