The LoRa soil temperature and humidity sensor is a wireless IoT sensor designed for measuring soil temperature and moisture. Compared with original high-precision sensors from Germany and calibrated via the actual soil oven-drying weighing method, it features high accuracy, fast response and stable output. Less affected by soil salt content, it is suitable for various soil types. It can be buried in soil for long-term use, withstanding prolonged electrolysis and corrosion. Vacuum-sealed and fully waterproof, it achieves wireless remote low-power consumption communication based on LoRa technology.