AND Apollo GX [GX-224A] Analytical Balances, 220 g x 0.1 mg - 90mm Ø w/ Internal Calibration. The A&D Weighing Apollo GX-224A Analytical Balance, 220g x 0.1mg with Internal Calibration features smart SHS (Super Hybrid Sensor) that increase productivity with 1 second stabilization time. The GX124A includes Electronically Controlled Load (ECL) that allows to set up repeatability testing and run automatic precision checks without external weights. The GX124A reduces errors and damage with impact shock detection and overload protection.