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    • Replacement Sensors

    Gas detection identifies potentially hazardous gas leaks by the sensors that are inside the units. From time to time these sensors may need to be replaced. Choose from a wide variety of gas detector sensors below for your gas detector maintenance program.

    Showing 1 to 20 of 105 products
    BW SR-B04 Replacement Carbon Dioxide IR Sensor for GasAlertMicro 5 IR, CO<sub>2</sub>-

    BW SR-B04 Replacement Carbon Dioxide IR Sensor for GasAlertMicro 5 IR, CO2
    Model: SR-B04

    Sale Price $1,630.06 USD
    Regular Price $2188.00 USD
    Availability 11 to 12 Weeks

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    Honeywell BW SR-W4-4R Replacement LEL IR Sensor, 4R+-

    Honeywell BW SR-W4-4R Replacement LEL IR Sensor, 4R+
    Model: SR-W4-4R

    Sale Price $1,609.95 USD
    Regular Price $2161.00 USD
    Availability 2 to 3 Weeks

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    Honeywell BW SR-B1-4R Replacement CO<sub>2</sub> IR Sensor, 4R+-

    Honeywell BW SR-B1-4R Replacement CO2 IR Sensor, 4R+
    Model: SR-B1-4R

    Sale Price $1,552.58 USD
    Regular Price $2084.00 USD
    Availability 2 to 3 Weeks

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    Honeywell BW SR-Q1-4R Replacement PID Sensor, 4R+-

    Honeywell BW SR-Q1-4R Replacement PID Sensor, 4R+
    Model: SR-Q1-4R

    Sale Price $1,431.15 USD
    Regular Price $1921.00 USD
    Availability 1 to 2 Weeks

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    Honeywell BW C03-0990-000 Replacement Sensor, Ex NDIR, 0 to 100% VOL (SIL l)-

    Honeywell BW C03-0990-000 Replacement Sensor, Ex NDIR, 0 to 100% VOL (SIL l)
    Model: C03-0990-000

    Sale Price $1,153.26 USD
    Regular Price $1548.00 USD
    Availability 2 to 3 Weeks

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    Honeywell BW C03-0990-100 Replacement Sensor, Ex NDIR, 0 to 100% LEL (SIL l)-

    Honeywell BW C03-0990-100 Replacement Sensor, Ex NDIR, 0 to 100% LEL (SIL l)
    Model: C03-0990-100

    Sale Price $1,153.26 USD
    Regular Price $1548.00 USD
    Availability 2 to 3 Weeks

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    Honeywell BW C03-0991-000 Replacement Sensor, CO<sub>2</sub> NDIR, up to 50,000 ppm-

    Honeywell BW C03-0991-000 Replacement Sensor, CO2 NDIR, up to 50,000 ppm
    Model: C03-0991-000

    Sale Price $1,153.26 USD
    Regular Price $1548.00 USD
    Availability 2 to 3 Weeks

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    Honeywell BW C03-0992-000 Replacement Sensor, Ex NDIR, 0 to 100% VOL (LP)-

    Honeywell BW C03-0992-000 Replacement Sensor, Ex NDIR, 0 to 100% VOL (LP)
    Model: C03-0992-000

    Sale Price $1,153.26 USD
    Regular Price $1548.00 USD
    Availability 2 to 3 Weeks

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    BW 54-47-23 Replacement Hydrogen Cyanide (HCN) Sensor for ToxiPro Single Gas Detectors-

    BW 54-47-23 Replacement Hydrogen Cyanide (HCN) Sensor for ToxiPro Single Gas Detectors
    Model: 54-47-23

    Sale Price $1,237.79 USD
    Regular Price $1383.00 USD
    Availability 2 to 3 Weeks

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    BW 54-47-24 Replacement Nitrogen Dioxide (NO2) Sensor for ToxiPro Single Gas Detectors-

    BW 54-47-24 Replacement Nitrogen Dioxide (NO2) Sensor for ToxiPro Single Gas Detectors
    Model: 54-47-24

    Sale Price $1,097.27 USD
    Regular Price $1226.00 USD
    Availability 2 to 3 Weeks

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    BW 54-47-21 Replacement Ammonia (NH3) Sensor for ToxiPro Single Gas Detectors-

    BW 54-47-21 Replacement Ammonia (NH3) Sensor for ToxiPro Single Gas Detectors
    Model: 54-47-21

    Sale Price $1,065.95 USD
    Regular Price $1191.00 USD
    Availability 2 to 3 Weeks

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    BW 54-47-03 Replacement Sulfur Dioxide (SO2) Sensor for ToxiPro Single Gas Detectors-

    BW 54-47-03 Replacement Sulfur Dioxide (SO2) Sensor for ToxiPro Single Gas Detectors
    Model: 54-47-03

    Sale Price $1,065.95 USD
    Regular Price $1191.00 USD
    Availability 2 to 3 Weeks

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    BW 54-47-13 Replacement Phosphine (PH3) Sensor for ToxiPro Single Gas Detectors-

    BW 54-47-13 Replacement Phosphine (PH3) Sensor for ToxiPro Single Gas Detectors
    Model: 54-47-13

    Sale Price $1,026.57 USD
    Regular Price $1147.00 USD
    Availability 2 to 3 Weeks

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    BW SR-G04 Replacement Ozone Sensor for GasAlert Extreme & GasAlertMicro 5, O<sub>3</sub>-

    BW SR-G04 Replacement Ozone Sensor for GasAlert Extreme & GasAlertMicro 5, O3
    Model: SR-G04

    Sale Price $842.60 USD
    Regular Price $1131.00 USD
    Availability 10 to 11 Weeks

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    BW 54-47-19 Replacement Carbon Monoxide Sensor (CO-H) for ToxiPro Single Gas Detectors, H2 Resistant-

    BW 54-47-19 Replacement Carbon Monoxide Sensor (CO-H) for ToxiPro Single Gas Detectors, H2 Resistant
    Model: 54-47-19

    Sale Price $814.29 USD
    Regular Price $1093.00 USD
    Availability 2 to 3 Weeks

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    BW SR-V04 Replacement Chlorine Dioxide Sensor GasAlert Extreme & GasAlertMicro 5, ClO<sub>2</sub>-

    BW SR-V04 Replacement Chlorine Dioxide Sensor GasAlert Extreme & GasAlertMicro 5, ClO2
    Model: SR-V04

    Sale Price $703.28 USD
    Regular Price $944.00 USD
    Availability 2 to 3 Weeks

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    BW SR-N04 Replacement Nitric Oxide Sensor for GasAlert Extreme, NO-

    BW SR-N04 Replacement Nitric Oxide Sensor for GasAlert Extreme, NO
    Model: SR-N04

    Sale Price $695.09 USD
    Regular Price $933.00 USD
    Availability 7 to 8 Weeks

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    BW SR-P04 Replacement Phosphine Sensor for GasAlert Extreme, PH<sub>3</sub>-

    BW SR-P04 Replacement Phosphine Sensor for GasAlert Extreme, PH3
    Model: SR-P04

    Sale Price $654.86 USD
    Regular Price $879.00 USD
    Availability 3 to 4 Weeks

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    BW PS-RS04 Replacement Sulfur Dioxide (SO<sub>2</sub>) Sensor for GasAlert Extreme & GasAlertMicro 5 -

    BW PS-RS04 Replacement Sulfur Dioxide (SO2) Sensor for GasAlert Extreme & GasAlertMicro 5
    Model: PS-RS04

    Sale Price $654.86 USD
    Regular Price $879.00 USD
    Availability 5 to 6 Weeks

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    BW SR-A204 Replacement Ammonia Sensor for GasAlert Extreme, NH<sub>3</sub>, Extended Range-

    BW SR-A204 Replacement Ammonia Sensor for GasAlert Extreme, NH3, Extended Range
    Model: SR-A204

    Sale Price $654.86 USD
    Regular Price $879.00 USD
    Availability 3 to 4 Weeks

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    Showing 1 to 20 of 105 products
    We Ship Free on Orders Over $199 within Canada