Fecha de publicación: 29/08/2017 Fuente: Wipo "IOT" The utility model relates to a cold chain monitoring electronic tags based on NB IOT, characterized by, include: temperature and humidity sensor, temperature and humidity sensor and central processing unit connect, and temperature and humidity sensor is the humiture data conversion of environment electric subdata and transmits to central processing unit, NB the IOT module, NB IOT module and central processing unit and remote server connection, NB the IOT module is passed through cellular networks with electric subdata and is transmitted to remote server, and, central processing unit. The utility model discloses both can be compatible with current cellular networks, and the low power dissipation, transmission distance is far away.