The present invention relates to a kind of device, for permanently detecting stomach pressure, stomach, temperature, WeiDongLi Capsule and mobile domestic animal, especially ruminant, including, for example, the ontology (14) of pellet shape, the ontology (14) includes following components. Pressure sensor (9), telemetering equipment (9) transmits measured value, with airtight inner space (12), wherein the wall (12) of airtight inner space include some elastic materials which be deformable, by the livestock of the stomach pressure, and wherein, the pressure sensor (9) is designed to detect in airtight inner space (12). According to the present invention, described device is design, so that it permanently remains in the livestock that it is used for livestock by stomach.
