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What is dissolved oxygen? Dissolved oxygen (DO) refers to molecular oxygen dissolved in water. The unit is mg/L, which means how many milligrams oxygen in per liter of water. The oxygen levels can reflect the self-purification ability in the water. In an environment with high DO, it is beneficial to degrade various pollutants and make […]
Dissolved Oxygen Definition, Important and Measurement Read More »
Long-term rainfall and melting snow have raised water levels and flooded city roads, causing flooding. Frequent and extreme flooding is inevitable and endangers community safety. Areas that are low-lying or near rivers and lakes are more vulnerable to flooding than normal areas. To reduce hazards from flooding, a flood warning system should be in place
Flood Warning System Definition and Types Read More »
Table of Contents Biologists estimate that the human nose can distinguish on the order of ten thousand odor types, while dogs can identify hundreds of thousands to several million odor signatures and can isolate a specific odor from complex mixtures. Even so, a large number of gases in nature are colorless and odorless, including many
Gas Sensors Types, Working Principles and Application Read More »
Table of Contents The commonly used communication method for data acquisition and control is RS-485. RS-485 is a general communication standard. It can not only link devices to the local network, but also put multiple 485 devices on the same bus, enabling multiple nodes to link to each other. What is RS-485? RS-485 (also known
RS-485 Wiring, Communication and Difference with RS232 Read More »
Table of Contents Many countries in the world are facing the problem of water shortage. Drinking water and irrigation water are very important to us. Whether farm irrigation or garden drip irrigation requires a lot of water. This process inevitably leads to water waste. Therefore, smart irrigation systems are becoming more and more important. It
Smart Irrigation Technology and System Read More »
Table of Contents With the development of Internet of Things technology, sensors and wireless transmission technology are widely used in smart agriculture. Smart agriculture is based on traditional agriculture, equipped with advanced facilities and a complete monitoring system. The wireless transmission system based on Lora technology can improve agricultural production efficiency and reduce environmental pollution,
LoRa Sensors Based Agriculture Remote Monitoring System Read More »
Air is a precious natural resource. But air pollution is increasing due to industrial production and human activities. At present, air pollutants include carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons, sulfur oxides, and particulate matter (PM). Among them, the level of fine particulate matter (pm2.5) has become one of the important indicators for detecting air
What Is PM2.5 and How Measure? Read More »
Table of Contents A wise gardener knows how to grow up plants and flowers healthily in the garden. Because he will use tools to analyze and improve the soil to provide the best growing environment for flowers, vegetables, etc. For example: use a soil nutrient sensor to detect the content of nitrogen, phosphorus and potassium
Top 8 Soil pH Testers for Garden Use Read More »
The main purpose of environmental monitoring is to provide data on environmental quality and changing trends to ensure the safety of public life and property. By monitoring and analyzing various environmental indicators, we can determine the level of pollution and environmental quality. The scope of environmental monitoring involves air, temperature, humidity, soil and other types.
Environmental Sensors List and Used Read More »
Measuring tilt angles is an important part of geometric metrology. The range of angle measurement is wide. According to the spatial position of the plane, it can be divided into: the horizontal angle (or azimuth angle) in the horizontal plane direction, the vertical angle (or inclination angle) in the vertical direction, and the spatial angle
Inclinometer & Tilt Sensor Working, Types and Applications Read More »