Features: NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD Ultra-low power consumption Upload water flow volume Door Open/Close detect Door open/close statistics Multiple Sampling and one uplink Supports Bluetooth v5.1 remote configuration and firmware updates Uplink via MQTT, MQTTs, TCP, or UDP Uplinks on periodically Downlink to change configuration 8500mAh Li/SOCl2 Battery(For CPL03-NB) Solar panel 3000mAh Li-ion battery(For CPL03-NS) Nano SIM card slot for NB-IoT SIM
