The invention relates to a locator, in particular a dairy cow, in a stable based on the wireless determination of the position of a particular animal in the stable and on the pasture, without disturbing the rest of the housed animal. The locator consists of a central controller and identification parts located on the animals. The wireless unit comprises means for wireless reception between the identification part and the central controller. All elements of the identification part are powered by a battery, which is also integrated into the identification part.