AND Apollo GF4002A [GF-4002A] Multi-Functional Precision Balance with External Calibration, 4,200g x 0.01g - 165mm x 165mm. The AND Weighing Apollo GF-4002A Precision Balance, 4200g x 0.01g is robust and durable. The GF4002A features Compact Super Hybrid Sensor(C-SHS) that makes the scale compact, fast, and precise. The GF4002A includes a wide range of modes to meet workflow needs.