Hydrometeorological stations are an important part of the network of meteorological stations, which are specially designed for meteorological and hydrological observations. These stations are usually set up along the banks of rivers and lakes to provide important data support for a wide range of application scenarios by observing and accumulating hydrological and meteorological data (e.g. precipit···

PM2.5 sensors have obvious advantages in providing real-time and accurate air quality monitoring data, but they also have disadvantages such as the need for regular calibration and maintenance. They have a wide range of applications in a variety of fields such as indoor and outdoor environmental monitoring, smart homes, and industrial emissions monitoring, and are an important tool for safeguardin···

PM10 sensor is a device used for real-time monitoring of the concentration of PM10 particles in the air. It is based on specific physical principles (e.g. laser scattering principle or optical principle), and is able to measure and display the concentration of PM10 particles in the air in real time. This sensor is widely used in outdoor weather stations, dust monitoring, libraries, archives, indus···

PM10 sensors are devices designed to detect the concentration of respirable particles in the air that are less than 10 microns in diameter. Instruments commonly used to measure PM10 include handheld dust meters, online monitoring systems, laser dust meters, gravimetric measurement devices, particulate matter monitors, and so on. The main methods for detecting PM10 are laser scattering method, grav···

3D ultrasonic anemometer is an advanced wind speed measurement device based on ultrasonic technology, featuring high-precision, real-time monitoring and multi-directional measurement, capable of providing wind speed and direction data in three-dimensional space. It has a wide range of applications in many fields such as meteorological observation, air quality monitoring, wind power generation, win···

Soil sensors have a wide range of uses and are mainly used in precision agriculture management to monitor soil moisture, nutrients and pH to optimise irrigation and fertiliser application; in environmental monitoring to assess soil health and prevent pollution; to support scientific research to investigate the relationship between soil and plant growth; in education to enhance students' knowledge ···

PM2.5 is a fine particulate matter in the air that is harmful to human health, and its concentration directly reflects the quality of air. PM2.5 sensor is a device that can accurately measure the concentration of PM2.5 in the air in real time, and its working principle is mainly based on the light scattering method. With PM2.5 sensor, we can understand and monitor the air quality in time, so that ···

Both 2D and 3D anemometers are important wind speed measurement tools, and they have their own advantages and applications in monitoring wind speed and direction. 2D anemometers are suitable for situations where the need for vertical wind speed measurement is not high, while 3D anemometers are suitable for complex environments where comprehensive information about the wind field is required. Users···

ultrasonic sensors in the application need to pay attention to its susceptibility to environmental influences, sensitive to surface roughness, the existence of ranging blind zones, diffusion angle and directional limitations, triangulation errors, susceptibility to noise and measurement speed limitations and other disadvantages. In practical applications, it is necessary to choose the appropriate ···

IoT agriculture and agricultural IoT are one of the important directions for the development of modern agriculture, and they realise the intelligent, efficient and sustainable development of the agricultural production process through high-tech means. The future of agricultural IoT is full of opportunities and challenges, and it is expected to lead agriculture into a new era of more efficient, int···