GAS SENSING SOLUTIONS

GSS

Low-power NDIR CO2 sensors

About the manufacturer

Gas Sensing Solutions (GSS) is a UK manufacturer specializing in NDIR carbon-dioxide sensing. The company develops compact CO2 sensor modules for applications that require accurate gas measurement with very low power consumption, including battery-operated instruments, portable monitors and ventilation-control equipment. Its technology is particularly suited to systems where energy budget and response time are important design constraints.

NDIR measurement determines carbon-dioxide concentration by measuring absorption of infrared light at wavelengths characteristic of the gas. Because the method is optical rather than consumptive, it is well suited to long-term CO2 monitoring. GSS focuses on reducing the energy required by the optical source and signal-processing chain, enabling sensor operation in products that cannot support the power draw of traditional NDIR modules.

The sensors are used in indoor-air-quality monitoring, demand-controlled ventilation, agriculture, laboratory equipment and portable gas instruments. Different variants address ambient-air ranges as well as higher CO2 concentrations. When choosing a module, designers should compare measurement range, accuracy, response time, sampling method, average and peak current, interface, calibration method and operating-temperature range. Pressure compensation and the physical airflow path around the sensor can also influence performance in demanding installations.

Applications

The brand’s solutions are used primarily where reliability, correct parameter selection and matching the component to operating conditions are important.

• air-quality monitoring and HVAC.
• demand-controlled ventilation.
• battery-powered and portable devices.
• agriculture, greenhouses and livestock systems.
• laboratory and industrial instrumentation.
• Indoor air-quality monitors – continuous CO2 display and alarm functions.
• Portable gas instruments – low-power concentration measurement in battery-operated equipment.

GSS products available from Maritex

Maritex offers GSS NDIR carbon-dioxide sensors for applications requiring sensitive measurement and low energy consumption. The range includes the ExplorIR family, including the ExplorIR-M-E-5 variant for CO₂ measurement up to 5%. These sensors are suitable for compact meters, ventilation systems and devices with tight power budgets.

Available product groups include:

• Low-power NDIR CO2 sensor modules.
• Sensors for ambient-air and higher-concentration CO2 measurement.
• Modules for portable and battery-powered instruments.
• CO2 sensing elements for ventilation-control systems.

Check measurement range, accuracy, response time, sample method, supply voltage and average/peak current, communication interface, calibration method, pressure compensation needs and operating-temperature range.