The whole body adopts anthropomorphic bionic modeling of standing bear, with round head, small round ears and stretched arms on both sides, creating a lovely and healing doll image and weakening the cold instrument feeling of thermometer. The whole machine adopts large rounded curved surface transition, without sharp edges and corners, thus avoiding the risk of collision and scratch. The slender and smooth fuselage conforms to the man-machine size of adults holding one hand, and is designed with lanyard to facilitate storage and prevent loss. The surface of the arm increases the point texture, which not only enriches the modeling details, but also can be used as a tactile contact point for children to touch and comfort.