A triple beam balance is a tool used to measure mass very precisely. The device has a reading error of +/-0.05 gram. The name cites the three beams including the central beam, which indicates the different size of the beams. The triple beam balance is utilized to measure mass directly from the objects, find mass by difference for liquid, and measure out a substance.
The three beams on a triple beam balance function independently to assess the size of an object. Placed on each beam is a weighted rider which you move along the beam to verify the object's size. A triple beam balance allows greater accuracy than a spring scale in determining the mass of objects in grams.