Uni-automation supplies an improved version of unipot p-25 and p-40 potentiometers. The company has carried out extensive experiments and life tests on these potentiometers including computerised noise testing and linearity testing. These tests conducted by uni-automation have enabled the potentiometers to ensure the published technical data even at the end of the claimed life. The company has carried out 100% check of noise on these potentiometers on a high-tech computerised system. The improved models of the potentiometers are highly suitable for instrument manufacturers. These potentiometers from uni-automation are furnished with precious metal tips for very reliable operation and the standard linearity error, which is better than 0.1%, is sometimes up to 0.5%.