Description Overview Type FD175 is built on the basis of type 818b. It cancels the functions: "down change with one key" and "constant humidity system". It keeps the core function of 818b type—"down returning system". Its high-precision and high-speed is same as 818b type. Specifications Type and model: FD175. Main body box size (m): 2.05 x 0.85 x 2. Weighing box size (m): 1.53 x 0.57 x 1. Filling platform (m): -. Filling port: 2. Down storage volume (kg): 10. Cycle number: 3. Weighing range (g): 0.2-32. Accuracy grade (g): 0.01. Filling speed: 5 to 8 grams per second. Condition and Features With humidity controller to ensure humidity stays constant when filling.