• 【Professional Screen Authentication Tool】Specialized testing lens designed to verify the authenticity for iPhone original screens through precise color block comparison analysis.

• 【12-Point Color Testing System】Features 12 numbered circular color blocks including light blue, deep blue, white, gray-white, orange, and brown for comprehensive screen quality assessment.

• 【Bare Screen Testing Required】Must be used on screens without protective films or screen protectors, as any film will interfere with accurate test results.

• 【Original vs Assembly Screen Detection】Effectively distinguishes between genuine original screens and FOG assembly screens by analyzing color display consistency.

• 【Easy Visual Comparison Method】Simply place the testing lens over for iPhone screen and compare the color block display effects for instant authenticity verification.

• 【Wide Compatibility Range】Supports comprehensive testing for iPhone 13 - iPhone 17 series devices for versatile professional use.

Note: 3 blue, 5 orange, 7 black indicates an original screen.