LoRaWAN leaf temperature and humidity sensor is a low-power IoT device designed specifically for plant physiological monitoring. It uses a leaf surface fitting probe and FDR measurement method to accurately collect leaf surface temperature and humidity. Unlike traditional air temperature and humidity monitoring, it directly reflects plant moisture status and transpiration efficiency. Has good sensitivity and can detect trace moisture residues on the surface of leaves. The leaf temperature and humidity transmitter adopts waterproof design, low power consumption, and can continuously monitor for a long time. Easy to install, can be hung inside the greenhouse or on tree branches for long-term uninterrupted monitoring. Widely used for measuring surface humidity of plants or objects in greenhouses, laboratories, aquaculture, production environments, artificial climate chambers, etc.