Leaf Temperature and Humidity Sensor, RS485

The leaf humidity sensor provides accurate foliage temperature and humidity monitoring and is particularly suitable for smart agriculture and precision climate control. The temperature and humidity sensor uses ModBus protocol output and RS485 interface for easy connection to various control systems. Its humidity measurement range is 0-100%RH with a resolution of 0.1%RH and an accuracy of ±3%, while the temperature measurement range is wide, from -40°C to 80°C, with an accuracy of ±0.5°C. The sensor can be used in a wide range of applications, including foliar temperature and humidity monitoring.

Specification

Features

• Leaf Surface Moisture Monitoring: Monitoring the trace water or ice crystal residue on the leaf surface, early warning of plant pests and diseases.
• Low Power Consumption and Long-term Monitoring: Adopting leaf imitation design, real simulation of leaf environment, stable performance and high sensitivity.
• Good Waterproof Seal: High protection level, waterproof and moisture-proof with epoxy resin encapsulation, longer life, can be applied to foliar fertiliser, wine spraying, sprinkler irrigation occasions.
• Leaf Vein Pattern: Denser leaf vein pattern (15 lines/cm), can detect smaller droplets, making the measurement more sensitive.
• Easier to Install: Can be hung in greenhouses or mounted on weather station masts.

Dimensional Drawing (unit: mm)

Wiring Instructions

Application

Tips:Leaf temperature and humidity sensor detection principle

The temperature and humidity sensor consists of a high-precision thermistor and a transmitter to accurately measure the temperature over the entire range. The shape of the sensor adopts the simulated blade shape, which realistically simulates the characteristics of the blade surface. Humidity can be accurately measured by the change of the dielectric constant of the leaf surface.