The Ohaus Harvard Trip Balances offer a two-pan design based on the classic Roberval balance principle. Ohaus Harvard Trip balances feature the additional advantages of magnetic damping, beams with sliding weights and a variety of weighing platforms. Commonly used for comparative weighing to determine the difference in mass between two objects, rather than their absolute value, these balances come equipped with built-in sliding masses. Harvard Trip balances are known for their accuracy and durability - constructed and precision-engineered for years of maintenance-free laboratory use. These mechanical balances have a 2000 gm capacity with readability of 0.1 gm. All models have a 6" diameter stainless steel pan. Taring feature is available on B1580-3.