The moisture meter is an intelligent sensor used to monitor soil profile temperature, humidity, and conductivity. It uses the 485 Modbus RTU communication protocol and can measure 6 layers of soil data at the same time. Products are widely used in agricultural engineering fields such as smart greenhouses, smart orchards, and smart irrigation, providing data support for precision agriculture.
Moisture meter is a high-precision intelligent sensor developed for agriculture, water conservancy and other users. It is used for long-term online monitoring of key parameters such as soil moisture, temperature, conductivity and so on. The equipment adopts the measurement principle of establishing a mathematical model by measuring the soil dielectric constant, and designs a spiral measuring electrode to obtain soil volume moisture content data. The sensor startup time is 60 seconds, the power supply voltage is DC12V, the power supply current is 22mA, and the power consumption is only 0.26W. It is a low-power design and is suitable for long-term field deployment. The communication method adopts 485 Modbus RTU protocol, which can measure 6 layers of soil data at the same time. The number of layers below 10 layers can be customized according to needs.
In terms of measurement accuracy, the soil temperature measurement range is -30 to 70°C, the accuracy is ±0.3°C in the range of -10 to 70°C, and the resolution is 0.01°C. The soil moisture measurement range is 0 to 100%, and the accuracy is ±3% under loam conditions. However, soils with high organic matter and soils with high clay content need to be calibrated for specific soil types due to their dielectric relaxation characteristics. The soil conductivity measurement range is 0 to 20000us/cm, the accuracy is ±3% in the range of 0 to 10000us/cm, the full range accuracy is ±5%, and the resolution is 1us/cm.
The core value of the moisture meter is to provide scientific decision-making basis for agricultural production. Mastering soil moisture information can provide scientific basis for drought prevention and drought resistance planning and defensive measures. It also helps agricultural workers understand the water demand patterns of crops and provide timely and appropriate irrigation. By monitoring soil moisture changes at different depths in real time, users can accurately determine the water absorption level of crop roots and irrigation depth, thus avoiding water waste and nutrient leaching caused by excessive irrigation. In smart greenhouses and smart orchard scenarios, moisture meters can be linked with the irrigation system to achieve precise irrigation on demand. In the field of scientific research, the long-term series of soil data provided by moisture meters can be used to study soil water and salt transport patterns, crop water stress response and other topics. The device supports the 485 Modbus RTU communication protocol and can be easily connected to the existing agricultural Internet of Things system to achieve centralized management and remote monitoring of data.
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