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Gas Detector Replacement Sensors & Cells

Shop gas detector replacement sensors and cells from top brands like CTi, designed for a wide range of industrial applications. Whether you need electrochemical, catalytic, or explosion-proof sensors, our products ensure precise gas detection for gases like ammonia, carbon monoxide, and nitrogen dioxide. These high-performance replacements are engineered to maintain the safety and reliability of your gas detection systems.

  • CTI Replacement Electrochemical Cell - NH3, High Range (0-500 to 0-1000 ppm), Explosion-Proof Housing

    Calibration Technologies (CTI)
    Original price $701.97 - Original price $701.97
    Original price
    $701.97
    $701.97 - $701.97
    Current price $701.97
    In stock

    This replacement electrochemical cell from CTI is designed for high-range ammonia (NH3) detection within a 0-500 to 0-1000 ppm range. It is housed ...

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  • CTI Replacement Electrochemical Cell for CO Sensor, H2 Resistant, Ribbon Cable

    Calibration Technologies (CTI)
    Original price $538.90 - Original price $538.90
    Original price
    $538.90
    $538.90 - $538.90
    Current price $538.90
    In stock

    This replacement electrochemical cell is designed for CTI carbon monoxide (CO) sensors. It is hydrogen (H2) resistant and comes with a ribbon cable...

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  • CTI Replacement Electrochemical Cell for Br2 Sensor, Bromine, 0-5 ppm

    Calibration Technologies (CTI)
    Original price $493.04 - Original price $493.04
    Original price
    $493.04
    $493.04 - $493.04
    Current price $493.04
    In stock

    This replacement electrochemical cell is designed for CTI bromine (Br2) gas sensors, with a detection range of 0-5 ppm. Ensure continued accurate a...

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  • CTI GG-VL2-R-RS Replacement Sensor Element for GG-VL2-R

    Calibration Technologies (CTI)
    Original price $649.74 - Original price $649.74
    Original price
    $649.74
    $649.74 - $649.74
    Current price $649.74
    In stock

    This replacement sensor element is designed for use with the GG-VL2-R sensor, ensuring continued accurate detection of gas levels. The RS variant o...

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  • CTI GG-VL2-NH3-RS Replacement Sensor Element for GG-VL2-NH3

    Calibration Technologies (CTI)
    Original price $649.74 - Original price $649.74
    Original price
    $649.74
    $649.74 - $649.74
    Current price $649.74
    In stock

    This replacement sensor element is designed for use with the GG-VL2-NH3 sensor, ensuring continued accurate detection of ammonia (NH3) levels. The ...

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  • CTI GG-VL2-CO2-RS Replacement Sensor Element for GG-VL2-CO2

    Calibration Technologies (CTI)
    Original price $649.74 - Original price $649.74
    Original price
    $649.74
    $649.74 - $649.74
    Current price $649.74
    In stock

    This replacement sensor element is designed for use with the GG-VL2-CO2 sensor, ensuring continued accurate detection of carbon dioxide (CO2) level...

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  • CTI GG-VL-NH3-RS Replacement Sensor for GG-VL-NH3

    Calibration Technologies (CTI)
    Original price $433.16 - Original price $433.16
    Original price
    $433.16
    $433.16 - $433.16
    Current price $433.16
    In stock

    This replacement sensor is designed for use with the GG-VL-NH3 sensor, ensuring continued accurate detection of ammonia (NH3) levels. The RS varian...

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  • CTI GG-VL-CH4-RS Replacement Sensor Element for GG-VL-CH4

    Calibration Technologies (CTI)
    Original price $433.16 - Original price $433.16
    Original price
    $433.16
    $433.16 - $433.16
    Current price $433.16
    In stock

    This replacement sensor element is designed for use with the GG-VL-CH4 sensor, ensuring continued accurate detection of methane (CH4) levels. The R...

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  • CTI GG-SO2-RC-EXP Replacement Electrochemical Cell, Explosion-Proof

    Calibration Technologies (CTI)
    Original price $701.97 - Original price $701.97
    Original price
    $701.97
    $701.97 - $701.97
    Current price $701.97
    In stock

    This replacement electrochemical cell is designed for use in explosion-proof environments, ensuring continued accurate detection of sulfur dioxide ...

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  • CTI GG-SO2-RC Replacement Electrochemical Cell for SO2 Sensors

    Calibration Technologies (CTI)
    Original price $538.90 - Original price $538.90
    Original price
    $538.90
    $538.90 - $538.90
    Current price $538.90
    In stock

    This replacement electrochemical cell is designed for use with GG-SO2 sensors, ensuring continued accurate detection of sulfur dioxide (SO2) levels.

  • CTI GG-O3 Replacement Cell for GG-O3-A Gas Sensor

    Calibration Technologies (CTI)
    Original price $1,030.67 - Original price $1,030.67
    Original price
    $1,030.67
    $1,030.67 - $1,030.67
    Current price $1,030.67
    In stock

    The CTI GG-O3 Replacement Cell is designed for the GG-O3-A Gas Sensor, ensuring continued accurate detection of ozone (O3) gas. This replacement ce...

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  • CTI GG-O2-SP1 Replacement Cell for GG-O2 Gas Sensor

    Calibration Technologies (CTI)
    Original price $538.90 - Original price $538.90
    Original price
    $538.90
    $538.90 - $538.90
    Current price $538.90
    In stock

    The CTI GG-O2-SP1 Replacement Cell is designed specifically for the GG-O2 Gas Sensor, ensuring continued accurate detection of oxygen (O2) levels. ...

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  • CTI GG-O2 Replacement Sensor Element, Explosion-Proof

    Calibration Technologies (CTI)
    Original price $701.97 - Original price $701.97
    Original price
    $701.97
    $701.97 - $701.97
    Current price $701.97
    In stock

    The CTI GG-O2 Replacement Sensor Element is designed for explosion-proof environments, ensuring accurate detection of oxygen (O2) levels. It mainta...

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  • CTI GG-O2-C Replacement Electrochemical Cell for Oxygen Gas Sensors

    Calibration Technologies (CTI)
    Original price $538.90 - Original price $538.90
    Original price
    $538.90
    $538.90 - $538.90
    Current price $538.90
    In stock

    The CTI GG-O2-C Replacement Electrochemical Cell is designed to maintain the accuracy and reliability of your oxygen gas sensors. Easy to install, ...

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  • CTI GG-NO2-RC Replacement Electrochemical Cell for NO2 Gas Sensors

    Calibration Technologies (CTI)
    Original price $701.97 - Original price $701.97
    Original price
    $701.97
    $701.97 - $701.97
    Current price $701.97
    In stock

    The CTI GG-NO2-RC Replacement Electrochemical Cell is designed for use with NO2 gas sensors in explosion-proof environments. It ensures continued a...

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  • CTI GG-NO2-B Replacement Electrochemical Cell for Nitrogen Dioxide (NO2) Sensors

    Calibration Technologies (CTI)
    Original price $538.90 - Original price $538.90
    Original price
    $538.90
    $538.90 - $538.90
    Current price $538.90
    In stock

    The CTI GG-NO2-B Replacement Electrochemical Cell is specifically designed for nitrogen dioxide (NO2) sensors, ensuring continued accurate gas dete...

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  • CTI GG-NH3-RC Replacement Electrochemical Cell for Ammonia (NH3) Sensors, Explosion-Proof

    Calibration Technologies (CTI)
    Original price $701.97 - Original price $701.97
    Original price
    $701.97
    $701.97 - $701.97
    Current price $701.97
    In stock

    The CTI GG-NH3-RC Replacement Electrochemical Cell is designed for ammonia (NH3) sensors in explosion-proof environments. This cell ensures continu...

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  • CTI GG-NH3-RC Replacement Electrochemical Cell for Ammonia (NH3) Gas Sensors

    Calibration Technologies (CTI)
    Original price $538.90 - Original price $538.90
    Original price
    $538.90
    $538.90 - $538.90
    Current price $538.90
    In stock

    The CTI GG-NH3-RC Replacement Electrochemical Cell ensures your ammonia (NH3) gas sensors continue to perform reliably. Designed for easy installat...

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  • CTI GG-NH3-HR-RC Replacement Electrochemical Cell for High-Range Ammonia (NH3) Gas Sensors

    Calibration Technologies (CTI)
    Original price $538.90 - Original price $538.90
    Original price
    $538.90
    $538.90 - $538.90
    Current price $538.90
    In stock

    The CTI GG-NH3-HR-RC Replacement Electrochemical Cell is designed for high-range ammonia (NH3) gas sensors, ensuring continued accurate detection i...

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  • CTI GG-NH3-2-RS-EXP Replacement Catalytic Sensor, Explosion-Proof, Ammonia (NH3)

    Calibration Technologies (CTI)
    Original price $701.97 - Original price $701.97
    Original price
    $701.97
    $701.97 - $701.97
    Current price $701.97
    In stock

    The CTI GG-NH3-2-RS-EXP Replacement Catalytic Sensor is designed for ammonia (NH3) detection in explosion-proof environments. This sensor replaceme...

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  • CTI GG-NH3-2-RS Replacement Catalytic Bead Sensor, Ammonia (NH3)

    Calibration Technologies (CTI)
    Original price $556.74 - Original price $556.74
    Original price
    $556.74
    $556.74 - $556.74
    Current price $556.74
    In stock

    The CTI GG-NH3-2-RS Replacement Catalytic Bead Sensor is designed for ammonia (NH3) detection. It ensures accurate and reliable gas monitoring by r...

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  • CTI GG-NH3-1-RS-EXP Replacement Sensor, Explosion-Proof, Ammonia (NH3)

    Calibration Technologies (CTI)
    Original price $701.97 - Original price $701.97
    Original price
    $701.97
    $701.97 - $701.97
    Current price $701.97
    In stock

    The CTI GG-NH3-1-RS-EXP Replacement Sensor is designed for ammonia (NH3) detection in explosion-proof environments. This sensor replacement ensures...

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  • CTI GG-NH3-1-RS Replacement Catalytic Bead Sensor, Ammonia (NH3)

    Calibration Technologies (CTI)
    Original price $556.74 - Original price $556.74
    Original price
    $556.74
    $556.74 - $556.74
    Current price $556.74
    In stock

    The CTI GG-NH3-1-RS Replacement Catalytic Bead Sensor is designed for ammonia (NH3) detection. It ensures accurate and reliable gas monitoring by r...

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  • CTI GG-LEL2-RS Replacement Sensor Element, 3 Wires, for GG-LEL2

    Calibration Technologies (CTI)
    Original price $701.97 - Original price $701.97
    Original price
    $701.97
    $701.97 - $701.97
    Current price $701.97
    In stock

    The CTI GG-LEL2-RS Replacement Sensor Element is designed for use with the GG-LEL2 gas sensor, featuring a 3-wire connection. It ensures continued ...

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Frequently Asked Questions (FAQs) about Gas Replacement Sensors & Cells

What are gas detector replacement sensors?

Gas detector replacement sensors are components designed to replace worn-out or expired sensors in gas detection systems. They ensure continued accuracy and reliability in detecting target gases.

How do I know when to replace a gas detector sensor?

Gas detector sensors should be replaced according to the manufacturer’s recommended lifespan or if the device shows reduced accuracy, delayed response times, or calibration issues.

Are replacement sensors compatible with all gas detectors?

No, replacement sensors are specific to the brand and model of your gas detector. Always check compatibility before purchasing a replacement sensor.

What types of gases can replacement sensors detect?

Replacement sensors are available for detecting a wide range of gases, including ammonia (NH3), carbon monoxide (CO), nitrogen dioxide (NO2), sulfur dioxide (SO2), and more, depending on the sensor type.

How often should gas detector sensors be replaced?

The replacement frequency depends on the sensor type and operating environment. Most sensors last 1 to 3 years, but consult the manufacturer’s guidelines for specific recommendations.

Are explosion-proof sensors necessary?

Explosion-proof sensors are essential in hazardous environments where flammable gases or vapors are present. These sensors are designed to prevent sparks or heat from causing ignition.

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