Mettler Toledo offers a comparator balance line. The calibration software, MC Link 2, delivers a high level of process security. Worry-free calibration processes are assured thanks to features such as the StatusLight. The light, built-in to the front of the comparator terminal, uses color to intuitively indicate when it is safe to start calibrating. A green status light means all tests are up to date, and the comparator is leveled and functioning correctly. Warnings are shown in yellow, and errors in red.