Features: NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13//B18/B19/B20/B25/B28/B66/B71/B85 CAT-M1 / LTE-M Bands: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85 Ultra-low power consumption Upload water flow volume Monitor water waste Multiply Sampling and one uplink Support Bluetooth v5.1 remote configuration and update firmware Uplinks on periodically Downlink to change configuration 8500mAh Li/SOCl2 Battery(For SW3L-CB) Solar panel 3000mAh Li-ion battery(For SW3L-CS) Nano SIM card slot for NB-IoT SIM
