In agricultural production, the temperature and humidity related to plant growth mainly include soil temperature and humidity, air temperature and humidity, and leaf surface temperature and humidity. temperature and humidity.
The temperature and humidity of plant leaves is an environmental factor that is closer to plant physiology, and its temperature and humidity have an important impact on the infection of pathogens on the surface of plant leaves. The types and quantities of air pollutants retained and adsorbed by leaves at different temperatures and humidity are also different. These pollutants settle on the surface of plant leaves and interact with the leaf surface, which can easily change the leaf surface humidity. When the temperature and humidity of plant leaves are too high, it will increase the breeding probability of pathogens in the field and increase the risk of leaf infection. It can be seen that the monitoring of foliar temperature and humidity is essential in agricultural production.
In order to prevent plant diseases caused by changes in leaf temperature and humidity in time, SenTec has independently developed a leaf temperature and humidity sensor (model: SEM225B), which is mainly used to monitor leaf temperature and humidity, and can monitor the trace amount of leaf surface. moisture. It can help managers to accurately know the temperature and humidity of plants, and provide an important reference for timely prevention and control of plant diseases.
Leaf Temperature and Humidity Sensor overview
SenTec Leaf Temperature and Humidity Sensor is composed of high precision thermistor and humidity sensor, which can measure temperature and humidity in the whole range. It has the advantages of fast response speed, high measurement accuracy, strong anti-interference ability and stable performance. Using standard MODBUS-RTU communication protocol, RS485 signal output, the communication distance can reach 2000 meters. Beautiful appearance, small size, easy to install, widely used in greenhouses, laboratories, breeding, production environments, artificial climate chambers and other plants or surface humidity measurement.
temperature and humidity sensor
advantages of SenTec leaf temperature and humidity sensor
1. Leaf temperature and humidity sensor imitation leaf design
The SenTec leaf surface temperature and humidity sensor adopts a leaf-like design to simulate the characteristics of the leaf surface, so it can more accurately reflect the conditions of the leaf surface environment. Humidity is measured by imitating the change in the dielectric constant of the leaf surface.
2. High precision of leaf temperature and humidity sensor
The sensor has a built-in high-precision low-power chip, the humidity monitoring range is 0-100%RH, the accuracy is ±5%RH (@25℃); the temperature monitoring range is -40~80℃, the accuracy is ±0.5℃ (@25℃) .
3. High sensitivity of leaf temperature and humidity sensor
The sensor imitates the leaf medium and selects denser vein patterns (15 lines/cm), has a strong ability to sense changes in outside temperature and humidity, and can detect smaller droplets.
4. Design of thermal grease for leaf temperature and humidity sensor
In order to protect the thermistor from the external environment, SenTec specially coats the thermal grease on the thermistor in the leaf temperature and humidity sensor. The thermal grease has excellent electrical insulation, excellent thermal conductivity and low freeness. (tends to zero), high and low temperature resistance, water resistance, ozone resistance, weathering resistance, and does not affect temperature monitoring.
5. Leaf temperature and humidity sensor waterproof grade IP67
The outer shell of the leaf temperature and humidity sensor is encapsulated by epoxy resin, waterproof and moisture-proof, with a waterproof grade of IP67, which has a longer life and can be directly used outdoors.
6. The leaf temperature and humidity sensor is easy to install
The leaf temperature and humidity sensor is easy to install, just place the sensor next to the crops or leaves, pass the non-metallic wire through the small hole at the front of the leaf sensor, hang it on the branches of the tree through the wire, and fix the device with iron wire or wire On branches or stems, the installation is complete.
