The Dragino LLMS01 is a LoRaWAN Leaf Moisture Sensor for IoT of Agriculture. It is designed to measure the leaf moisture and temperature, so to send to the platform to analyze the leaf status such as watering, moisturizing, dew, frozen. The probe is IP67 waterproof.
LLMS01 detects leaf moisture and temperature use the FDR method, it senses the dielectric constant caused by liquid over the leaf surface, and converts the value to leaf moisture. The probe is designed in a leaf shape to best simulate the real leaf characterizes. The probe has as density as 15 leaf vein lines per centimeter which makes it can sense small drop and more accuracy.