UV Tester, 0-3000w / cm² LCD Portable Digital Ultraviolet Radiation Detector UV UVI Meter Tester with Temperature Display: Amazon.com: Industrial & Scientific
Universal Blue Light Blocking Screen Protector Panel for 23, 23.6, 23.8, 24 inch Diagonal LED PC Monitor Anti-UV Eye Protection Filter Film - Widescreen Monitor Frame Hanging Type (W 21.2" X H