... : 0.1, 11. Measuring repeatability: ≤0.3. Configuration of Brightness Tester: Mainframe, standard white board, power line Recommend ... reasons of Brightness Tester: 1. International advanced technology, 2. Human-machine friendly ... design, easy operation, keeping handlers safe, 3. Reasonable price. Keywords of Brightness Tester: ISO 2469, ISO 2470, ISO 2471 ...