LoRaWAN solar water conductivity, temperature, and salinity sensor is a sensor used to measure the conductivity of solutions. A wireless water quality monitoring device designed specifically for outdoor scenarios without mains power. The device is equipped with automatic temperature compensation function, which can adjust the conductivity at the current temperature to the set temperature. It is widely used in water quality testing, aquaculture, sewage treatment, environmental protection, pharmaceuticals, food, and tap water fields to achieve continuous monitoring of water solution conductivity. Supports LoRa TDMA self-organizing network technology and standard LoRaWAN protocol.