sensor

Small tilting deviations in infrastructure projects and large industrial equipment are often early signs of collapses and overturning accidents. Traditional levels and total stations can only conduct intermittent manual measurements, making it difficult to capture slowly accumulating deformations. Tilt sensors , also known as inclinometers or tilt transmitters, rely on the Earth's gravity field and MEMS (Micro-Electro-Mechanical Systems) sensing technology to convert minute attitude deviations of objects into collectable, transmittable, and predictable digital signals. They are the core sensing terminals for safety monitoring of bridges, dams, ancient buildings, construction machinery, and warehouse racking. Measurement Principle and Core Product Advantages Mainstream industrial-grade tilt sensors adopt the MEMS acceleration measurement principle. When the equipment is stationary, the internal high-precision acceleration chip senses the gravity vector; when the measured carrier til...

Atmospheric pressure (atmosphere, unit hPa) is a crucial meteorological element. Changes in air pressure often foreshadow weather changes such as sunshine, rain, and fog, and are also key parameters for altitude conversion and environmental analysis. Traditional mercury barometers are bulky, cannot achieve automated data output, and are difficult to adapt to long-term observations at field stations. Atmospheric pressure sensors (pressure transmitters), using MEMS (Micro-Electro-Mechanical Systems) chips as their core, convert air pressure changes into electrical signals, enabling continuous, 24/7 air pressure data acquisition. They are essential sensing terminals for automatic weather stations, smart agriculture, and environmental monitoring systems. Measurement Principle and Core Product Advantages Mainstream industrial-grade atmospheric pressure sensors utilize MEMS sensing technology and are divided into piezoresistive and capacitive types. Piezoresistive MEMS barometric pressure s...

Liquid level is a crucial process parameter for chemical storage tanks, wastewater regulating ponds, pump station tanks, and reservoirs. Traditional float level gauges and submersible hydrostatic level gauges require direct contact with the medium, making them prone to corrosion, scaling, and sediment accumulation. Ultrasonic level gauges are susceptible to distortion in environments with steam, dust, or foam. Radar level sensors (radar level transmitters) utilize FMCW (Frequency Modulated Continuous Wave) microwave technology. The device is installed above the liquid surface, performing level measurement completely non-contactly, unaffected by media corrosiveness or steam/mist interference. Measurement Principle and Core Advantages The mainstream technologies are non-contact FMCW frequency-modulated continuous wave radar and guided wave radar. FMCW Non-Contact Radar Level Sensor: The antenna transmits a continuously modulated microwave signal. The microwaves are reflected from the l...

Ammonia (NH₃) is an irritating and harmful gas. It is released from the fermentation of livestock and poultry manure, fertilizer and chemical production, and the decomposition of soil organic matter. Excessive concentrations can damage the respiratory tracts of livestock and workers, corrode production equipment, and are also a significant air pollutant. Traditional manual inspections can only detect intermittently, failing to promptly identify sudden increases in concentration and potential leaks. Ammonia sensors (ammonia transmitters) primarily utilize electrochemical sensing, with some high-end models employing laser spectroscopy technology to achieve 24-hour continuous online monitoring. They are widely used in livestock and poultry farming, chemical workshops, agricultural greenhouses, and environmental boundary monitoring. Five Core Application Scenarios 1. Large-scale Livestock and Poultry Farming: Real-time monitoring of ammonia in pigsties and chicken coops, linked to ventila...

Carbon dioxide is a key indicator for evaluating the safety of confined spaces, the light environment of facility agriculture, and industrial production conditions. Continuous accumulation of CO₂ in confined environments can cause dizziness and even suffocation in personnel; its concentration in greenhouses directly determines the photosynthetic efficiency of crops; and in chemical and metallurgical processes, concentration changes can directly reflect the operating status of production equipment. Traditional manual sampling and testing suffers from latency and cannot achieve continuous monitoring around the clock. Carbon dioxide sensors mainly fall into two technical categories: NDIR (non-dispersive infrared) and electrochemical sensors. They are available in fixed transmitters and portable detectors, and are widely used in industrial security, smart agriculture, environmental research, and biomedicine. Measurement Principle and Core Advantages NDIR (non-dispersive infrared) technolo...

Atmospheric pressure is a crucial physical parameter reflecting weather evolution and altitude changes. Pressure fluctuations can predict weather events such as sunshine, rain, and cold waves, and are widely used in aerial exploration, industrial automation, smart agriculture, and archival storage. Traditional mercury barometers require manual on-site readings and cannot transmit data digitally, making them unsuitable for IoT-based automated monitoring systems. Atmospheric pressure sensors (atmospheric pressure transmitters) convert physical atmospheric pressure signals into standardized electrical signals, enabling 24/7 unattended automatic data acquisition. They are essential front-end sensing devices for micro-weather stations and environmental IoT systems. Measurement Principles and Core Advantages Mainstream products utilize three main technological approaches: MEMS piezoresistive, silicon capacitive, and silicon resonant. Piezoresistive pressure gauges rely on the deformation o...

Turbidity is a core water quality indicator for assessing the cleanliness and pollutant content of water bodies. The numerical value directly reflects the total amount of sediment, colloids, algae, and suspended pollutants in the water. It is a mandatory monitoring parameter for tap water supply, sewage treatment, river and lake ecology, industrial production, and aquaculture. Traditional laboratory sampling and testing suffers from drawbacks such as lag, inability to monitor 24/7, and high labor costs. Water turbidity sensors (turbidity transmitters), relying on 90° infrared scattering optical technology, can continuously collect data while submerged in water for extended periods. They are indispensable front-end sensing hardware for smart water management and watershed ecological monitoring networks, providing stable quantitative data support for water quality process control, pollution source tracing, and long-term water resource management. Five Core Industry Application Scenario...

Winter blizzards and persistent snow cover pose serious safety hazards to road traffic, aircraft takeoffs and landings, agricultural production, meteorological analysis, and flood control. Traditional manual snowplow measurements and ultrasonic snow depth equipment have significant shortcomings: manual observation is inefficient, operations in frigid environments pose safety risks, and data is intermittent; ultrasonic equipment is susceptible to interference from loose snow, fog, and low temperatures, resulting in large measurement errors. Laser snow depth sensors (laser snow depth transmitters), relying on phase-type laser ranging technology, achieve non-contact, millimeter-level, all-weather automated snow measurement without manual intervention. They are a core front-end sensing device for snow condition early warning in meteorology, transportation, aviation, and other fields. Core Measurement Principle: Phase-Modulated Laser Ranging The laser snow depth sensor employs industry-mat...

Fog, haze, dust storms, sea fog, and industrial smoke can significantly reduce atmospheric visibility, easily triggering high-speed chain-reaction car accidents, flight delays, ship groundings, and factory safety incidents. Traditional manual fixed-point observations suffer from significant subjective errors, inability to operate 24/7, and data lag. Atmospheric visibility sensors (visibility meters), relying on standardized optical scattering technology, achieve all-weather automatic quantitative monitoring and are indispensable front-end sensing hardware for intelligent transportation, aviation meteorology, port and maritime affairs, and comprehensive meteorological networks. Core Measurement Principle: 35° Forward Scattering Mainstream Technology Industry-standard visibility sensors adopt the internationally recognized 35° forward scattering optical architecture. The device is equipped with a highly stable infrared LED light source that emits a directional beam. After the light pass...

Fixed weather monitoring stations can only obtain regional average weather data, failing to accurately reflect local microclimates in fields, factories, disaster areas, and fire zones. Traditional split-type anemometers are cumbersome to assemble and difficult for a single person to operate quickly. Handheld weather stations (portable micro-meteorological instruments) adopt an integrated ultrasonic sensor design with no rotating mechanical parts. They can be held with one hand and simultaneously collect more than ten meteorological elements, including wind speed and direction, temperature and humidity, air pressure, CO₂, PM2.5, light intensity, and radiation. They support large-capacity local storage and long-lasting field operation, making them essential mobile monitoring equipment for meteorological emergencies, agricultural and forestry inspections, environmental supervision, fire rescue, and scientific research. Core Technologies of Handheld Weather Stations Ultrasonic Wind Measur...

In smart water systems, industrial circulating water treatment, swimming pool operation and maintenance, and hospital wastewater management systems, industrial residual chlorine transmitters (residual chlorine sensors) are core online hardware for monitoring free residual chlorine (hypochlorous acid, hypochlorite ions) in water. Excessive residual chlorine concentration can corrode pipes and burn human mucous membranes; insufficient concentration can breed bacteria and microorganisms, causing water quality to fail to meet standards and triggering environmental penalties. Traditional manual sampling and testing is slow and cannot be monitored 24 hours a day. The new generation of non-membrane three-electrode residual chlorine sensors completely solves the pain points of frequent membrane and electrolyte replacements and high maintenance costs associated with traditional membrane electrodes. Combined with RS485 digital transmission, it achieves fully automated dosing linkage and remote d...

With the increasing demands for industrial safety management, modern agricultural quality improvement, and healthy living environments, carbon dioxide sensors (CO₂ detectors) have become essential environmental monitoring equipment. Excessive CO₂ concentrations in enclosed workshops, underground pipe networks, and greenhouses can cause oxygen deprivation and asphyxiation, fire and explosion hazards, and reduced crop yields. Traditional manual sampling is slow and cannot be monitored 24/7. Carbon dioxide sensors equipped with NDIR infrared technology can collect concentration data in real time around the clock and provide multi-level early warnings for exceeding limits, providing accurate data support for safe production, carbon emission records, and intelligent planting. NDIR Carbon Dioxide Sensor Core Principle Mainstream high-precision carbon dioxide sensors uniformly adopt non-dispersive infrared (NDIR) technology, relying on the absorption and conversion of CO₂ concentration in a s...

Dissolved oxygen (DO) is a core indicator for measuring the ecological health of water bodies, the operation of wastewater treatment processes, and the safety of aquaculture water environments. Stable and reliable dissolved oxygen analyzers are indispensable for river and lake ecological assessment, wastewater treatment plant aeration tank control, aeration management in fish and shrimp farming, and tap water quality monitoring. Traditional electrochemical membrane dissolved oxygen equipment suffers from drawbacks such as consuming oxygen in the water, requiring regular electrolyte replacement, and membrane clogging and drift. Optical dissolved oxygen analyzers, based on the fluorescence quenching principle, have become the mainstream equipment for online water environment monitoring due to their advantages of being consumable-free, low-maintenance, and capable of long-term stable operation. I. In-depth Analysis of Five Major Dissolved Oxygen Analyzer Manufacturers (I) Shandong Renke :...

 In fields such as meteorological monitoring, urban flood control, smart agriculture, and geological disaster early warning, the continuity and reliability of precipitation data are crucial for decision-making. Optical rain gauges , as a new generation of precipitation monitoring equipment, rely on non-contact optical sensing technology, overcoming the limitations of traditional mechanical rain gauges and becoming a key terminal in environmental monitoring systems. The Value and Importance of Optical Rain Gauges Precipitation monitoring is a fundamental aspect of meteorological observation. Traditional tipping bucket and siphon rain gauges rely on mechanical structures, which are prone to wear, clogging, and jamming with long-term use. Data deviations are particularly pronounced in complex environments such as heavy rain, freezing rain, and dust storms, and maintenance costs are high. Optical rain gauges detect precipitation through infrared light scattering or blocking principles,...

Water is the source of life, and the health and stability of the water environment are directly related to ecological balance, people's well-being, and industrial development. In recent years, eutrophication and algal blooms caused by the excessive proliferation of blue-green algae have become increasingly prominent problems. These not only damage aquatic ecosystems but may also release algal toxins that threaten drinking water safety. Therefore, accurate and efficient blue-green algae monitoring has become a crucial link in water environment management. Blue-green algae water sensors , as core monitoring equipment, can capture changes in blue-green algae concentration in water bodies in real time, providing scientific data support for governance decisions. To help relevant units accurately select the right sensors, we have selected a group of manufacturers with strong technology, reliable products, and excellent service. These include well-known domestic and international brands a...

Water salinity is a core factor regulating the structure and function of aquatic ecosystems. Its changes directly affect the survival and reproduction of organisms, community structure, nutrient cycling, and can even trigger regional ecological imbalances. The specific impacts are as follows: I. Direct Impacts on Aquatic Organisms Impact on Cell Osmolarity and Survival Aquatic organisms have specific tolerance ranges for salinity; exceeding these thresholds disrupts cellular osmolarity balance: Freshwater organisms: such as carp and grass carp, have a higher internal osmolarity than the surrounding freshwater and rely on ion regulation systems in their gills and skin to maintain balance. A sudden increase in salinity can lead to cell dehydration and shrinkage, resulting in respiratory distress and death. Marine organisms: such as corals and tuna, have a lower internal osmolarity than seawater and need to excrete excess salt through their salt-excreting organs. A sudden drop in salinit...

Industrial pressure sensors have wide applications in various fields. Here are some key application scenarios: Fluid Control: Pipeline Pressure Monitoring: Used to monitor the pressure of liquids or gases in pipelines, ensuring the safety and stability of the production process. For example, in oil extraction, pressure sensors help engineers monitor downhole pressure in real time to prevent dangerous situations. Pump and Valve Control: By monitoring pressure changes, automatically adjusting the opening and closing of pumps and valves optimizes fluid delivery efficiency. Boiler Water Level Monitoring: Steam Pressure Monitoring: Ensures that the steam pressure generated by the boiler remains within a safe range, preventing equipment damage or safety accidents caused by overpressure or underpressure. Food Processing: Liquid Flow Control: Helps to precisely control the flow and pressure of liquids in pipelines, thereby ensuring product quality and consistency. Filling and Packaging: Durin...

There are many reasons for monitoring equipment surface temperature , which can be summarized as follows: Ensuring normal equipment operation: Equipment generates heat during operation. Excessive temperature can lead to decreased performance or even damage. Monitoring surface temperature allows for timely detection of temperature anomalies, enabling measures to be taken to prevent equipment failure. Extending equipment lifespan: Proper temperature control can effectively extend the lifespan of equipment. For example, electronic components perform optimally and have reduced failure rates when operating at suitable temperatures; mechanical equipment operating within a reasonable temperature range reduces wear and extends its lifespan. Ensuring safety: High-temperature equipment can pose safety hazards such as burns to operators. Monitoring equipment surface temperature ensures it remains within safe ranges, preventing injury. Furthermore, abnormal temperatures may be a precursor to inter...

1. Using Sulfur Powder: Sulfur powder is one of the most common methods for lowering soil pH. Soil bacteria convert the sulfur powder into sulfuric acid, thus lowering the soil pH. The amount used depends on the soil texture and the current pH level. Generally, 600 grams of sulfur powder per square meter is needed to lower the pH by one unit. The effects of sulfur powder are relatively slow, usually taking several months to see noticeable changes; therefore, it is recommended to add it at least one year before planting. 2. Using Aluminum Sulfate: Aluminum sulfate is a chemical that quickly lowers soil pH. Once dissolved in the soil, it rapidly releases acidic substances, thereby lowering the soil pH. The amount used also depends on the soil texture and the current pH level . Typically, 300-600 grams of aluminum sulfate per square meter is needed to lower the pH by one unit. Aluminum sulfate works quickly, but excessive use may lead to excessive aluminum ions, which can harm plants. 3. ...

(I) Accurate Identification of Ecological Problems and Interruption of Pollution Chains Eutrophication Warning :By monitoring indicators such as chlorophyll, total nitrogen, total phosphorus, and cyanobacteria density, potential algal blooms/red tides can be detected early, allowing for timely implementation of source control, ecological water regulation, and aeration to prevent aquatic organism mortality due to oxygen depletion, food chain disruption, and aquatic ecosystem collapse. Tracking Heavy Metal/Toxic Organic Pollution:Monitoring pollutants such as lead, mercury, arsenic, pesticide residues, and petroleum hydrocarbons in water bodies identifies pollution sources. Enforcement and supervision drive emission reductions, minimizing pollutant accumulation in aquatic organisms and their transmission through the food chain. Protecting Groundwater and Wetland Ecosystems:Regular monitoring of groundwater over-extraction areas and wetland recharge areas tracks water quality and quantity...