Lab-Grade Performance in a Hand-Held Instrument Mercury combines the high performance of larger bench-top units with the simple state-of-the-art user Palm interface. The Mercury is - Simple - Flexible - Accurate - Fast - Powerful - Portable Mercury is a comprehensive, versatile tool that lets you take control and perform color evaluations right on the production floor. Benefits: - Get handheld convenience with laboratory precision - Add more utility to your color network Features: - Unique Palm OS - Comprehensive on-board quality control software - Easy to use Compatability: All spheres series Optical configuration: sphere