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Guide to Selecting Gas Sensors for the Petrochemical Industry

28th Oct 2026

The gas environment in the petrochemical industry is complex, with different gases originating from various sources and posing distinct hazards. To assist in the proper selection of GAS SENSORS FOR THE PETROCHEMICAL INDUSTRY, Sangbay Sensor provides a multi-dimensional analysis based on gas types and application scenarios, offering tailored solutions for R&D engineers and equipment manufacturers.   I. Requirements for Gas Sensors in the Petrochemical Industry: · Explosion-proof compliance: Environments involving hazardous chemicals must meet the relevant requirements for intrinsically safe explosion-proof design. · Wide operating temperature range: Temperatures in plant areas fluctuate significantly (-20°C to 60°C), requiring stable output across the entire temperature range. · Anti-poisoning: Capable of withstanding the adverse effects of substances such as H2S and organosilicon compounds. · Corrosion-resistant housing: Capable of withstanding corrosion from acidic gases. · High protection grade: Protection grade ≥ IP65 to ensure dust and water resistance. · Long service life: A recommended service life of ≥ 2 years is required. · Low power consumption: Applying to portable detectors requires extended battery operation.   II. Selecting Solutions of Gas Sensors for the Petrochemical Industry Solution 1: Single Sensor (Bare Sensor) Suitable for equipment manufacturers developing their own data acquisition circuits and for integration...

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What Are Specialty of M-4S Series Gas Sensor Module?

21th Oct 2026

With lightweight, portable gas detection devices now in high demand, limited internal installation space has become a common challenge across the industry. Sangbay Sensor’s newly launched M-4S SERIES GAS SENSOR MODULE combines numerous advantages together—including a compact design, unified interface, factory calibration, standard protocols, and plug-and-play functionality, specifically designed for portable and miniature gas detection devices. 1 Compact Size, Ideal for Portable Devices The M-4S series gas sensor module utilize small-volume sensors with dimensions of Ø20mm × 18mm (excluding copper pins) and a weight of approximately 10g, which makes it better suited for various portable detection instruments. 2 Factory-Calibrated for Precision The module undergoes precise full-range calibration before leaving the factory and features standardized interfaces and packaging. Customers can directly acquire standard concentration signals for data transmission and online monitoring.   3 Full-range Temperature Compensation Algorithm The M-4S series gas sensor module utilizes a high-performance microprocessor, features a high-precision analog-to-digital converter, and incorporates a built-in temperature sensor along with a precise full-range temperature compensation algorithm, enabling accurate detection of ambient gas concentrations even in varying temperature conditions. 4 Standard MODBUS Protocol for Simple Development and Integration Using a standard UART (TTL 3.0V) communication interface, the modules support the standard MODBUS-RTU...

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Six Application Scenarios for Medical Oxygen Monitoring Sensors

14th Oct 2026

In different medical scenarios, the selection of MEDICAL OXYGEN MONITORING SENSORS directly impacts the effectiveness of oxygen therapy, the overall compliance of the device, and even the safety of its use. Proper type selection can also prevent data distortion caused by measurement drift. This article compiles selection guidelines of various medical oxygen monitoring sensors in different scenarios, serving as a reference for equipment R&D and procurement personnel.   01 Medical Oxygen Monitoring Sensors by Application Scenario 02 Application Scenario of Medical Oxygen Monitoring Sensors 1. Oxygen concentrator output 2. Direct-suction oxygen therapy tubing 3. Diffusion oxygenation/indoor oxygen enrichment 4. Hyperbaric chamber equipment (in-chamber environment + oxygen inhalation branch) 5. Ventilator/anesthesia machine FiO₂ 6. Central oxygen supply/medical gas pipelines   03 Key Advantages of Medical Oxygen Monitoring Sensors 🔹 Compatible with Domestic Substitutes SFO2-100% is comparable to oxygen sensors from international brands, achieving cost reduction and efficiency gains. 🔹 Excellent Batch Consistency Each unit is individually calibrated before shipment with traceable data, addressing the old issues of significant batch variations and poor stability. 🔹 Comprehensive Product Portfolio for All Scenarios Covers the full range of categories—lead or lead-free, standard or high-end, single sensors or modules—to meet diverse requirements for budget, lifespan,...

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What Is the Difference Between Lead and Lead-free Oxygen Sensors?

10th Oct 2026

For the application scopes of industrial monitoring, confined space safety, etc., the selection of LEAD AND LEAD-FREE OXYGEN SENSORS directly impacts the equipment’s span life and data accuracy. Today, we’ll provide a detailed explanation of the differences between these two products, as well as how to select them correctly to meet your needs.   I. Lead Oxygen Sensors Sangbay Sensor currently offers two types of two-electrode oxygen sensors with a service life of 2 years under normal environmental conditions. Neither requires an external bias voltage, making circuit development simple. Model: S4OXV Advantages: High sensitivity, fast response time, 0V bias voltage, excellent repeatability and long-term stability, and mature mass production processes. Applications: Ventilation monitoring in industrial facilities, commercial security systems, standard enclosed spaces, medical oxygen concentrators, and basic monitoring in grain silos. Model: H4O₂ Advantages: Wide temperature range of -30 to 50℃; outstanding resistance to airflow, temperature, and humidity interference; fast response and zero-reset speeds; excellent repeatability and long-term stability. Applications: Mines; pump-suction equipment in the petrochemical industry; outdoor online monitoring; medical oxygen concentrators; and detection instruments subject to significant high and low temperature fluctuations.   II. Lead-Free Oxygen Sensors We currently offers three types of three-electrode oxygen sensors. The electrodes...

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Application of the Sangbay Sensor A-5S Integrated Gas Sensor Module in Smart Inspection Equipment

03th Jun 2026

In recent years, an increasing number of intelligent inspection devices have begun to integrate gas sensing capabilities and are being deployed in various high-risk gas monitoring scenarios. To meet growing market demand, Sangbay Sensor has independently researched and manufactured the A-5S INTEGRATED GAS SENSOR MODULE. Thanks to its high adaptability and reliability, it has been successfully integrated into emergency communication quadruped robots. Why choose the A-5S integrated gas sensor module? 1. Integrated design, plug-and-play With a unified interface and packaging, it supports sensors based on multiple principles—including electrochemical, catalytic combustion, infrared, PID, and photoionization—requiring no secondary development. 2. Factory-calibrated, no on-site calibration required The module features a built-in full-range temperature compensation algorithm and is precisely calibrated at the factory, allowing for immediate use upon delivery. 3. Multiple signal outputs, compatible with various control systems Supports UART/RS485/analog output and is compatible with the standard MODBUS-RTU communication protocol, ensuring seamless integration with robot controllers. 4. Comprehensive gas detection Stably detects over 100 hazardous gases, such as CO, H2S, EX, VOC, NH3, etc., fully meeting the needs of emergency response and industrial safety. 5. Harsh environment resistance Operating Temperature: -20°C to +50°C Operating Humidity: 10% to 95% RH (non-condensing) The Core Function of...

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How to Choose Gas Sensors for the Mining Industry?

27th May 2026

The GAS SENSORS FOR THE MINING INDUSTRY are primarily used in underground and open-pit mines to continuously monitor key parameters such as methane (CH₄), carbon monoxide (CO), hydrogen sulfide (H₂S), and oxygen (O₂). As critical components for ensuring miners’ safety and preventing gas explosions and suffocation accidents, these sensors are widely used in personal wearable detectors, mining pipelines, and underground fixed monitoring stations etc..   Depending on the gases being detected, gas sensors for the mining industry primarily include the following types of sensors and modules: 1. MJC4 Catalytic Combustion Sensor: Primarily used to detect combustible gases (e.g. methane), this sensor measures concentration by detecting changes in heat generated through catalytic oxidation and combustion. It is the primary technology for coal mine gas alarms. With a wide, precise detection range of 0–100% LEL, it can capture real-time changes in methane and other combustible gas concentrations underground, helping to prevent the risk of explosions. 2. H4CO Carbon Monoxide Sensor: Primarily used to monitor fire hazards in mines and carbon monoxide generated by methane explosions. Utilizing electrochemical principles, it has a detection range of 0–1000 ppm, covering the full spectrum from trace amounts to high concentrations; with a resolution of 1 ppm,...

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