Ohaus Specialty Mechanical Triple Beam Balance, with Stainless Steel Plate and Tare, 610g Capacity, 0.1g ReadabilityMechanical triple beam balance with 610g capacity and 0. 1g readability (also called accuracy) Three sliding weights and notched and tiered beams help ensure accurate readings and repeatable results Built in magnetic damping speeds weighing for increased productivity Zero adjust compensator is spring loaded for fine modifications Base and beams are made of metal for durability in the classroom or laboratory setting The Ohaus mechanical triple beam