ANT2500 Pour Point Tester  is a laboratory instrument used to determine the lowest temperature at which an oil or other petroleum-based fluid stops flowing or becomes too viscous to pour. This property is critical for assessing the suitability of lubricating oils and other fluids in cold weather conditions, as it helps prevent equipment malfunction due to fluid solidification. Suitable for many industries, such as automotive, aviation, and marine, where lubricating oils and fuels need to perform reliably in cold environments.