M5Stack M031-B NB-IoT无线通信模块 COM.NB-IoT是一款可叠加多频段NB-IoT无线通信模块

Dimensions: 54.2 mm x 54.2 mm x 13.2 mm

Unit Weight: 75 g

Interface Type: UART

Supply Voltage - Max: 12 V

Supply Voltage - Min: 5 V