Tired of having to Submerge-your-Computer in Water so you can See-thru-the-Gauge Protector? Once your Gauge Protector gets Scuffed-and-Scratched enough you can Hardy-Read it On-the-Surface between dives, it still Protects-the-Computers Crystal, but if you can't read the Computer between Dives it time to Replace-It. The Gauge Protector is designed to Protect-the-Mares Puck Air Computer from Scratches, Abrasions and Harmful UV Rays. Its Protective Lens is Optically-Clear and Installs-Easily over the Computer Face. Replacement Gauge Protector makes a great Save-a-Dive Kit Item.