ArcOne S240-10 Horizontal Single Filter， Shade 10<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Two independent sensors</li><li>5.25 square inches of active viewing area</li><li>Switching speed of 0.5 milliseconds</li><li>Water and dust resistant</li><li>Dark to light state delay of 0.2 seconds</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31eQwi4jRUL.jpg" noproxy>