Just wondering, ball park guesse Are A-OK
WD40. Or just unhook the detector first, then take out battery. Most just turn off its base. But if that was the case Im sure setting it off wouldnt matter, because you could just hit the reset. So you must be talking about a fixed detector like in a dormroom or something?
An optical surface is the surface of an optical component of an optical system. For example, the surface of a lens or a mirror is an optical surface. Normal surface are surfaces of material are not necessarily light guiding or reflective.
