The OTC-513 is a non-contact temperature measuring instrument that measures wrist temperature. It provides abnormal alarm and counting features and is mounted on a pole with adjustable heights. The OTC-513 can be widely applied in schools, office buildings, communities, subway stations, airports, etc.  Non-contact measurement on the wrist, no cross infection. Real-time alarm, quick detection of abnormal temperatures. High accuracy, measurement deviation is less than or equal to 0.3℃, and measurement distance is between 1cm to 3cm Real-time display of measured temperatures, normal and abnormal temperature counts on LCD screen. Stainless steel bracket. Adjustable pole with two different heights