Leaf-to-Air-Temperature sensors (LAT) are used for direct, continuous and high-precision temperature measurements. The measured temperature parameters include absolute temperatures of the leaf surface, leaf-surrounding ambient air (Tair), and the temperature difference between leaf surface and ambient air (ΔTleaf-to-air). These devices are suitable for long-term application in outdoor conditions. Due to their extremely low power consumption, Ecomatik LAT sensors are ideal for battery-powered solutions, e.g., in IoT applications.