RTEC Steelmini is mini RFID ceramic tag with heat resistant shell. Though small it is, it is a rugged RFID tag of IP68 specially designed for metal objects. As high temperature RFID tag, Steelmini can resist the temperature of 300℃. The high temperature resistant shell can not only isolate part of the heat, but also protect the ceramic tag inside from corrosion by acid and alkali solution in the environment. It is encapsulated while injection molding process to ensure the cavity is truely air tight. Steelmini is able to be applied to multiple types of applications, such as coating,heat treatment,molding,painting and many other RFID industrial management.