Stay informed about the latest developments, product announcements, and industry insights from Critical Environment Technologies.
Digital communications transform gas detection from a standalone safety system into a connected source of operational intelligence offering better visibility, improved maintenance capabilities and greater control over ventilation and alarm systems.
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For facilities seeking straightforward ventilation control, alarm activation and BAS connection, analog communications continue to provide exceptional value.
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This guide walks through gas sensor technology selection, the codes and standards that typically govern the spec, output and integration requirements, and the stocking considerations that keep a distribution channel responsive.
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CET has expanded its cGas gas detection platform with advanced non-dispersive infrared (NDIR) sensors for methane and propane detection, providing a highly reliable and accurate solution for monitoring combustible gases.
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While NDIR technology is increasingly being adopted due to its durability, low maintenance and resistance to sensor poisoning, catalytic sensors continue to remain highly relevant due to their lower cost, broad combustible gas response and ability to detect hydrogen.
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There is no universal winner in the analog versus digital debate. Both approaches deliver safe and effective gas detection integration when properly designed and maintained.
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This guide explains what the respiratory zone is, how it relates to gas behavior, and how to use it as the basis for correct detector placement across a wide range of applications.
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Integration with BMS, BAS or other type of control system enables automated ventilation and safety controls and ensures responsive facility management.
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Recreation facilities are complex buildings with many potential gas hazards. While guests are focused on their laps around the pool or personal bests on the treadmill, gas detectors are focused on something else entirely - the air they are breathing.
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Transit facilities face a variety of air quality challenges, from diesel exhaust in bus terminals to particulate matter in subway stations and elevated CO₂ levels in crowded passenger areas. Without proper monitoring and ventilation, these pollutants can affect passenger comfort, employee health, and overall facility safety.
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When gas detection systems are integrated correctly, they become the intelligence layer that drives ventilation, improving safety, reducing energy use, and extending equipment life.
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A gas detector is only as good as the gas that reaches it and diffusion is one of the process that decides how well that happens.
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A comprehensive guide to Variable Refrigerant Flow (VRF) HVAC systems and the importance of refrigerant leak detection for building safety.
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Learn to recognize the warning signs of propane gas exposure and what to do if you suspect a leak in your home or facility.
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A fresh year calls for fresh safety checks - make gas detector maintenance your first resolution.
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Improved diffusion model calibration cap for stable calibration across all environments.
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Infrared sensors stand out as a superior solution, offering significant advantages over traditional solid-state sensors.
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Provides continuous monitoring for acute refrigerant leaks in modern energy-efficient buildings utilizing Variable Refrigerant Flow (VRF) HVAC systems.
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One key safety issue that data centers face is the buildup of hydrogen gas in the battery rooms. Hydrogen gas detectors are essential to ensure the safety of people and property.
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With 30+ years of experience, we provide reliable integration. CET gas detection systems seamlessly work with diverse ventilation fans, delivering energy‑efficient solutions that boost safety and cut operating costs.
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A gas detection system in a chiller room is not just a precaution"”it's a critical safety measure.
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Regular maintenance and inspection of the gas detection system helps identify and correct problems before they escalate and lead to false readings or missed detections.
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Regular maintenance, calibration and inspection of the gas detection system helps identify and correct problems before they escalate and lead to false readings or missed detections.
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The sensor coverage range for CO and NO₂ gas detectors in parking garages is larger than many other applications. Find out why.
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Infrared refrigerant gas sensors offer a powerful combination of accuracy, reliability, and low maintenance, making them an excellent choice for modern HVAC and refrigeration systems.
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While multi-point sample draw systems can seem efficient, they come with significant risks and drawbacks that may outweigh their benefits in critical gas detection applications.
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Designed to replace the legacy DCC-SD and DCC-MRI systems, the cGas-SD brings a new level of performance, usability, and flexibility to gas detection in hard-to-access environments.
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Oxygen is essential for life, yet it can also pose significant risks. Ensuring that oxygen levels are properly monitored and maintained is vital for safeguarding human health and safety.
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The cGas-SD Sample Draw System elevates your safety standards with precision monitoring.
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Gas detectors are vital safety devices designed to monitor and measure potentially lethal gases in various environments, safeguarding lives, property and the environment.
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The height at which to mount a fixed gas detector depends on the density of the target gas relative to air and can also depend on the on the type of application.
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The integration of gas detection systems in greenhouse production and oil extraction facilities is essential for maintaining safety and efficiency.
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At CET, we've been at the forefront of the gas detection evolution. Our journey over the past 30 years has been marked by continuous improvement and a commitment to excellence.
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Ammonia is a corrosive, toxic gas or liquid used in manufacturing and refrigeration. Exposure to high levels of ammonia can be fatal. Learn the ins and outs about ammonia gas detection systems.
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A2L refrigerants offer a safer and more environmentally friendly alternative to traditional refrigerants, but they require careful handling and specific safety standards to mitigate potential hazards.
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With practice and the right tools, this conversion becomes simple—an essential part of accurate, compliant gas detection.
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By incorporating a low temperature package, gas detectors can provide reliable performance and safety across a wider range of environments.
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Ensuring safety with gas detectors involves proper usage, calibration, and maintenance to effectively monitor hazardous gases and protect lives and property.
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This technical resource from Critical Environment Technologies provides essential information for gas detection professionals, facility managers, and safety engineers.
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Bedbug infestation is an extremely common problem worldwide.
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When choosing between fixed and portable gas detectors there are many factors to consider to ensure the proper monitoring measures are being taken to ensure the health and safety of occupants.
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When considering the hazardous gases in a brewery, CO2 is likely the first to come to mind. While it plays a crucial role in brewing, other gases like ammonia, nitrogen, and ozone can also be present.
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Gas detectors rely on accurate signals to detect gas concentrations. Proper wiring prevents interference, signal loss, or noise that could affect the detector's performance.
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Both NO and NO₂ are produced during the combustion process and are emitted into the air through the exhaust of gasoline run vehicles. What other similarities and differences do the two gases have?
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Wildfire smoke contains fine particles that can irritate the respiratory system, damage lung tissue, and increase long‑term health risks. Even indoors, you’re not fully protected from its harmful effects.
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They are all around you, be aware of them and stay safe.
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Many gases—some detectable by humans, others not—can leak into the spaces where we work and play, becoming dangerous when they exceed safe concentrations.
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Solid‑state sensors are versatile and can detect many gases, but they require clean, stable environments with minimal temperature and humidity fluctuations.
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Non-dispersive infrared sensors accurately detect CO2 and refrigerant gases without cross interference from toxic or combustible gases because the absorption of the infrared light occurs at a wavel...
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Proper sensor placement is critical for effective gas detection. The mounting height and location of sensors directly impacts their ability to detect hazardous conditions and protect personnel. Thi...
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Catalytic sensors are used for detecting combustible, or flammable gases, such as methane, propane and hydrogen. They are a safe and reliable combustible sensor technology that has been used for man..
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Electrochemical sensors provide highly accurate monitoring of toxic gases and oxygen, but their longevity depends on factors such as temperature, humidity, contamination, gas exposure, and proper maintenance.
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Gas detection transmitters play a crucial role in safeguarding lives and property by monitoring and detecting hazardous gases in the environment. These devices consist of various components, with sens
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CET offers CO₂ gas detectors for indoor air quality and for life, health and safety applications with various ranges, units of measure and alarm levels that are fully programmable in the field.
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Many recreational facilities offer both skating and swimming amenities, two very different environments with several different potential gas hazards. How many gas detectors are really needed?
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Formaldehyde is a chemical with no colour and an unpleasant smell. At room temperature it is a gas and it also comes in a liquid solution form. Formaldehyde can cause irritation of the skin, eyes, no.
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CO2 is naturally occurring all around us and in low concentrations it is not the least harmful. However, CO2 has the potential to exist in unhealthy concentrations in a multitude of applications which
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Boiler rooms play a vital role in building operations, but they also pose serious safety risks due to the potential buildup of hazardous gases. Typically located in unfrequented areas, continuous gas detection monitoring is crucial to ensure personnel remain aware of any dangerous conditions.
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Advancements in gas detection technology has made energy and cost management possible by connecting the two systems together and putting the gas detection system in the driver's seat to run the ventil
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Calibration frequency is one of the most commonly asked questions concerning the use of gas detection instruments. The answer depends on a number of factors, including the type of gas detection system
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Everyday exposure to indoor pollutants can cause you to lose life expectancy and you may die years earlier then you should!
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Most malfunctions are discovered at the time of calibration or bump testing, meaning at some point between calibrations the gas monitor manifested a problem.
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Gas detectors play a crucial role in building automation and control systems, providing real-time data on a range of factors that impact the safety and comfort of building occupants.
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Navigating gas detection regulations can be complex. CET makes it simple with our Sense Series of compliance solutions: ChillSense, BoilerSense and ParkSense each tailored to specific applications
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Remote audible/visual devices offer superior notification because they are loud and bright and more likely to promote a generalized and appropriate human response to an emergency situation.
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CET has launched a brand new non-dispersive infrared, dual beam gas detector for accurate, low level detection of a wide variety of refrigerants, including A2L refrigerants, SF6 and CO2 (R744).
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Today's buildings, whether it is a home, office, manufacturing plant, hospital, etc., are more energy efficient; however, they also foster a potentially harmful environment. Indoor Air Quality (IAQ) h
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CET"s high range A2L refrigerant gas detectors satisfy the ASHRAE 15-2024 standards, complying with the 25% LFL alarm point and ensuring comprehensive safety and compliance for all your commercial ref
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It only takes a spark to start a fire or cause an explosion, especially when flammable gases or vapours are present under the right conditions.
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Natural gas is a flammable gas that is commonly used in building heating systems such as schools, universities and dormitories. It consists primarily of methane gas. The source of the natural gas is..
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Gas cooking equipment such as grills, stoves and fryers in restaurants, hotels and other commercial kitchens often use natural gas or propane for an energy supply. If a burner was left on or a fitting
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This technical resource from Critical Environment Technologies provides essential information for gas detection professionals, facility managers, and safety engineers.
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A gas detection system is an important and required component for ensuring the health and safety of everyone in an aquatic recreation facility. Below is some general information about both gases
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Classification Toxic, oxidizing agent, powerful disinfectant Molecular Formula O3 Molecular Weight 47.997 g/mol Fire Hazard Rating Risk of fire and explosion on contact with combustible substances M..
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Modern gas detection systems support various communication protocols for integration with building automation and control systems. Understanding these options helps optimize system design.
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Bump testing a gas sensor involves flowing a concentration of gas that is slightly higher than the Low alarm setpoint of the gas detector for a short period of time (1-2 minutes or less).
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Classification Inorganic, toxic gas Molecular Formula NH3 or H3N Molecular Weight 17.031 g/mol Fire Hazard Rating Slight to moderate, on its own The presence of oil or other combustible materials incr
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Properly configured alarm setpoints are crucial for early warning while avoiding nuisance alarms. The following guidelines are based on occupational exposure limits and industry best practices for ...
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Different industries and applications face different gas hazards. This reference chart helps identify the relevant gases for common market segments.
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Understanding sensor lifespan is essential for planning maintenance schedules and ensuring continuous protection. Different sensor technologies have varying life expectancies based on their operati...
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Proper sensor placement is critical for effective gas detection. The mounting height and location of sensors directly impacts their ability to detect hazardous conditions and protect personnel. Thi...
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The gas detection industry uses many specialized abbreviations and acronyms. This reference guide covers the most commonly encountered terms.
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Carbon monoxide (CO) and carbon dioxide (CO₂) are often confused, but they are fundamentally different gases with distinct properties, hazards and gas detection requirements. Understanding these differences is essential for proper gas detection system design.
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This technical resource from Critical Environment Technologies provides essential information for gas detection professionals, facility managers, and safety engineers.
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Fixed gas detection systems are permanently installed throughout a facility. They continuously monitor for specific gases and automatically trigger alarms, ventilation systems, or other safety measures when dangerous concentrations are detected.
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The FCS offers an incredibly flexible control structure using alarm level settings, time of day settings, advanced logic, multiple priority levels per zone, etc. meeting the requirements of California.
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With the legalization of marijuana in many North American regions, the cannabis cultivation industry is booming.
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Critical Environment Technologies is pleased to announce the release of our FCS Flexible Control System multichannel controller.
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Regular testing and calibration are essential to ensure gas detection equipment functions correctly when needed. This guide covers the key procedures for verifying detector operation.
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IP and NEMA ratings both help users evaluate enclosure protection, but they do so using different standards and testing criteria and as a result are not interchangeable. Unlike measurement systems such as kilometers / miles or Celsius / Fahrenheit, there is no direct one-to-one conversion between NEMA enclosure types and IP ratings.
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Wastewater treatment plants face a wide range of gas hazards throughout every stage of the treatment process.
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Calibrating gas detectors can be time-consuming, particularly in larger facilities with numerous sensors and gas types. However, calibrating all detectors within the same maintenance cycle is the best practice for ensuring consistent performance and maximum safety.
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In hazardous environments, it only takes a single spark to trigger a fire or explosion when flammable gases, vapors, or combustible dust are present. Selecting the appropriate gas detection equipment is therefore critical to protecting personnel, facilities, and operations.
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Although residential and commercial gas detectors share the common goal of monitoring gas, they differ significantly in design, performance, durability, maintenance requirements, certifications and operational capabilities.
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Calibration gas cylinders do not last forever. Shelf life varies depending on the gas mixture, concentration, and cylinder type, making it important to monitor expiration dates and replace cylinders as needed.
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Ice arenas present a unique combination of gas hazards that may include carbon monoxide, nitrogen dioxide, ammonia, carbon dioxide, and oxygen-deficient atmospheres.
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Carbon dioxide plays an essential role in beverage dispensing systems, but its familiarity can lead people to underestimate its hazards.
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Understanding the importance of ventilation and chemical exposure affecting air quality in beauty salons.
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VOCs are a diverse group of carbon-based chemicals that evaporate easily and are found everywhere from household products to major industrial facilities.
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