AND FX-i [FX-300i] Standard-Level Precision Balances with External Calibration, 320g x 0.001g - 130mm. The AND Weighing FX-300i Precision Balance, 320g x 0.001g is robust and durable. The FX300i features Compact Super Hybrid Sensor(C-SHS) that makes the scale compact, fast, and precise. The FX300i includes a wide range of modes to meet workflow needs.