AND Phoenix GH [GH-202] Analytical Semi-Micro Balance w/ Internal Calibration, 51/220g x 0.01/0.1mg - 90mm Ø. The A&D Weighing Phoenix GH-202 Semi-Microbalance, 51/220g x 0.01/0.1mg with Internal Calibration features OES technology offering high performance and a wider range of models with reliable accuracy and precision. The GH202 includes automatic self-calibration to maintain accuracy under temperature changes. The GH202's clock/calendar function allows for time and date stamps and GLP reports.