scales; weighing device
A device for measuring weight; the term is somewhat technical and less common in everyday conversation than 体重計 (for body weight) or はかり (general scales).
These scales can measure up to 200 kg.
At the factory, raw materials are accurately weighed with scales.
Compound of 体 (body, object) + 量 (quantity, measure) + 器 (device, instrument). The exact historical derivation is uncertain, but the kanji straightforwardly indicate a measuring instrument for weight.