The IR sensitivwe paint is very poorly active and very thing. I have 2 powerfull IR FLashlights and it is barely visible that they are turned on. The paint could be thicker and better applied over a larger surface. Value for money ??? not pleased!!
Wrong detector. I wanted a detector that would respond to a range of infrared frequencies. It was not clear in description that it reacted to only one frequency of 1064 nm.