Goelgroup offers with draminski ph meter for milk. It is specially constructed taking advantage of modern integrated circuits, characterized by high efficiency. The whole instrument is driven by a microcomputer which allows for precise and easy tests. It is basically designated to measure ph value in milk, but can also be used to determine ph of many other liquids. It also measures temperature [in c] and voltage [in mv]. The tester can be held and manipulated with one hand only, this being a considerable advantage in the case of field measurements. Liquid crystal display shows the result in big easily readable numbers.