SJSCM300 wireless temperature measuring device, divided into two models of SOJOSC M300-A and SOJOSC M300-B, with wireless communication, wired communication, data display, over-temperature alarm and other functions, highly integrated, advanced technology; Small size, beautiful appearance and reliable operation, widely used in online monitoring for the static and dynamic contacts in 10KV, 35KV high voltage switchgear and the junction temperature inside the cabinet; Temperature online monitoring for main transformer of power station; Temperature online monitoring for power plant substation equipment and cable connectors, etc.