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Ammonia Carbon Dioxide Carbon Monoxide
Chlorine Chlorine Dioxide Combustible Gas
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Hydrogen Cyanide Hydrogen Fluoride Hydrogen Sulfide
Nitrogen Dioxide Nitrogen Oxide Oxygen
Ozone Sulfur Dioxide VOC - PID

Fixed Gas Detection Sensor Assemblies

Gas leak detection equipment, such as fixed gas detection systems, are critical in certain environments where certain toxic leaks may become fatal to those in the area. Some gas leak detection sensors may be used to monitor refrigerants, while other fixed gas detection sensor assemblies may be dedicated to guarding against various toxic gases.

Many of the fixed gas sensor assemblies featured here are from well-respected German manufacturer GfG. We also carry an Otis unit that can be set to detect oxygen as well as various toxic substances including ammonia, carbon monoxide (CO), hydrogen, hydrogen sulfide and sulfur dioxide. This is a unique and versatile electrochemical sensor system that utilizes a non-invasive, magnetically triggered calibration process, has a long life expectancy, and is built to withstand harsh conditions and climates.

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GfG Fixed Gas Sensor Assembly for Toxic Gas, EC 21 GfG Fixed Gas Sensor Assembly for Toxic Gas, EC 21

GfG Fixed Gas Sensor Assembly for Toxic Gas Detection. EC 21 Series

Our Starting Price: $710.00 Each
GfG Fixed Gas Detection, Ammonia (0(20) - 200 ppm), CI 21 GfG Fixed Gas Detection, Ammonia (0(20) - 200 ppm), CI 21

GfG Ammonia Fixed Gas Detection, Sensor Assembly for Ammonia CI 21 (0(20) - 200 ppm).

Our Price: $710.00 Each
GfG Fixed Gas Detection, Ammonia (0(30) - 1,000 ppm), CI 21 GfG Fixed Gas Detection, Ammonia (0(30) - 1,000 ppm), CI 21

GfG Ammonia Fixed Gas Detection, CI 21 Sensor Assembly for Ammonia (0(30) - 1,000 ppm).

Our Price: $710.00 Each
GfG Fixed Gas Detection, Ammonia (0(30) - 10,000 ppm (1.00% Vol.)), CI 21 GfG Fixed Gas Detection, Ammonia (0(30) - 10,000 ppm (1.00% Vol.)), CI 21

GfG Ammonia Fixed Gas Sensor Assembly for Ammonia (0(30) - 10,000 ppm (1.00% Vol.)). CI 21 Series

Our Price: $710.00 Each
OTIS Fixed Gas Detector, Hydrogen Sulfide (0 - 100 ppm), OI-675 OTIS Fixed Gas Detector, Hydrogen Sulfide (0 - 100 ppm), OI-675

OTIS Fixed Gas Sensor Assembly for Hydrogen Sulfide (0 - 100 ppm). OI-675

Our Price: $835.00 Each
OTIS Fixed Gas Detector, Carbon Monoxide (0 - 999 ppm), OI-675 OTIS Fixed Gas Detector, Carbon Monoxide (0 - 999 ppm), OI-675

OTIS Fixed Gas Sensor Assembly for Carbon Monoxide (0 - 999 ppm). OI-675

Our Price: $835.00 Each
OTIS Fixed Gas Detector, Combustible Gas (0 - 100% LEL), CB, OI-6000 OTIS Fixed Gas Detector, Combustible Gas (0 - 100% LEL), CB, OI-6000

OTIS Fixed Gas Monitor for Combustible Gas (0 - 100% LEL), Catalytic Bead Sensor. OI-6000

Our Price: $940.00 Each
OTIS Fixed Gas Detector, Sulfur Dioxide (0 - 20 ppm), OI-675 OTIS Fixed Gas Detector, Sulfur Dioxide (0 - 20 ppm), OI-675

OTIS Fixed Gas Sensor Assembly for Sulfur Dioxide (0 - 20 ppm). OI-675

Our Price: $945.00 Each
OTIS Fixed Gas Detector, Oxygen (0 - 25% Vol.), OI-675 OTIS Fixed Gas Detector, Oxygen (0 - 25% Vol.), OI-675

OTIS Fixed Gas Sensor Assembly for Oxygen (0 - 25% Vol.). OI-675

Our Price: $945.00 Each
OTIS Fixed Gas Detector, Ammonia (0 - 100 ppm), OI-675 OTIS Fixed Gas Detector, Ammonia (0 - 100 ppm), OI-675

OTIS Fixed Gas Sensor Assembly for Ammonia (0 - 100 ppm). OI-675

Our Price: $945.00 Each
OTIS Fixed Gas Detector, Combustible Gas (0 - 100% LEL), CB, Relays, OI-6000 OTIS Fixed Gas Detector, Combustible Gas (0 - 100% LEL), CB, Relays, OI-6000

OTIS Fixed Gas Monitor for Combustible Gas (0 - 100% LEL), Catalytic Bead Sensor, with Relays. OI-6000

Our Price: $1,185.00 Each
GfG Oxygen Fixed System Transmitter/Sensor Assembly, ZD 21 Series GfG Oxygen Fixed System Transmitter/Sensor Assembly, ZD 21 Series

GfG Oxygen Fixed System Transmitter/Sensor Assembly, ZD 21 Series.

Our Starting Price: $1,195.00 Each
GfG Carbon Dioxide Fixed System Transmitter/Sensor Assembly, IR 24 GfG Carbon Dioxide Fixed System Transmitter/Sensor Assembly, IR 24

GfG Carbon Dioxide Fixed System Transmitter/Sensor Assembly, IR 24 Series

Our Starting Price: $1,300.00 Each
OTIS Fixed Gas Detector, Chlorine (0 - 10 ppm), OI-675 OTIS Fixed Gas Detector, Chlorine (0 - 10 ppm), OI-675

OTIS Fixed Gas Sensor Assembly for Chlorine (0 - 10 ppm). OI-675

Our Price: $1,340.00 Each
OTIS Fixed Gas Detector, Hydrogen Fluoride (0 - 10 ppm), OI-675 OTIS Fixed Gas Detector, Hydrogen Fluoride (0 - 10 ppm), OI-675

OTIS Fixed Gas Sensor Assembly for Hydrogen Fluoride (0 - 10 ppm). OI-675

Our Price: $1,340.00 Each
OTIS Fixed Gas Detector, Combustible Gas (0 - 100% LEL), IR, OI-6000 OTIS Fixed Gas Detector, Combustible Gas (0 - 100% LEL), IR, OI-6000

OTIS Fixed Gas Monitor for Combustible Gas (0 - 100% LEL), Infrared Sensor. OI-6000

Our Price: $1,340.00 Each
OTIS Fixed Gas Detector, Combustible Gas (0 - 100% Vol.), IR, OI-6000 OTIS Fixed Gas Detector, Combustible Gas (0 - 100% Vol.), IR, OI-6000

OTIS Fixed Gas Monitor for Combustible Gas (0 - 100% Vol.), Infrared Sensor. OI-6000

Our Price: $1,340.00 Each
GfG Gas Detection, Oxygen (0 to 25.0% Vol.), EC 35 GfG Gas Detection, Oxygen (0 to 25.0% Vol.), EC 35

GfG Fixed Gas Sensor Assembly for Oxygen (0 - 25.0% Vol.). EC 35

Our Price: $1,385.00 Each
GfG Refrigerant Fixed Gas Sensor Assembly, CS 21 GfG Refrigerant Fixed Gas Sensor Assembly, CS 21

GfG Refrigerant Fixed Gas Sensor Assembly. CS 21

Our Starting Price: $1,450.00 Each
GfG Gas Detection, Carbon Monoxide (0 - 500 ppm), EC 35 GfG Gas Detection, Carbon Monoxide (0 - 500 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Carbon Monoxide (0 - 500 ppm). EC 35

Our Price: $1,460.00 Each
GfG Gas Detection, Hydrogen Sulfide (0 - 200 ppm), EC 35 GfG Gas Detection, Hydrogen Sulfide (0 - 200 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Hydrogen Sulfide (0 - 200 ppm). EC 35

Our Price: $1,475.00 Each
GfG Gas Detection, Oxygen (0 - 25.0% Vol.), Relays, EC 36 GfG Gas Detection, Oxygen (0 - 25.0% Vol.), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Oxygen (0 - 25.0% Vol.). EC 36

Our Price: $1,485.00 Each
OTIS Fixed Gas Detector, Combustible Gas (0 - 100% LEL), IR, Relays, OI-6000 OTIS Fixed Gas Detector, Combustible Gas (0 - 100% LEL), IR, Relays, OI-6000

OTIS Fixed Gas Monitor for Combustible Gas (0 - 100% LEL), Infrared Sensor, with Relays. OI-6000

Our Price: $1,485.00 Each
OTIS Fixed Gas Detector, Combustible Gas (0 - 100% Vol.), IR, Relays, OI-6000 OTIS Fixed Gas Detector, Combustible Gas (0 - 100% Vol.), IR, Relays, OI-6000

OTIS Fixed Gas Monitor for Combustible Gas (0 - 100% Vol.), Infrared Sensor, with Relays. OI-6000

Our Price: $1,485.00 Each
GfG Gas Detection, Sulfur Dioxide (0 - 50.0 ppm), EC 35 GfG Gas Detection, Sulfur Dioxide (0 - 50.0 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Sulfur Dioxide (0 - 50.0 ppm). EC 35

Our Price: $1,530.00 Each
GfG Gas Detection, Hydrogen Cyanide (0 - 200.0 ppm),  EC 35 GfG Gas Detection, Hydrogen Cyanide (0 - 200.0 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Hydrogen Cyanide (0 - 200.0 ppm). EC 35

Our Price: $1,555.00 Each
GfG Gas Detection, Carbon Monoxide (0 - 500 ppm), Relays, EC 36 GfG Gas Detection, Carbon Monoxide (0 - 500 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Carbon Monoxide (0 - 500 ppm). EC 36

Our Price: $1,560.00 Each
GfG Gas Detection, Hydrogen Sulfide (0 - 200 ppm), Relays, EC 36 GfG Gas Detection, Hydrogen Sulfide (0 - 200 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Hydrogen Sulfide (0 - 200 ppm). EC 36

Our Price: $1,575.00 Each
GfG Gas Detection, Nitrogen Oxide (0 - 300.0 ppm), EC 35 GfG Gas Detection, Nitrogen Oxide (0 - 300.0 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Nitrogen Oxide (0 - 300.0 ppm). EC 35

Our Price: $1,610.00 Each
GfG Gas Detection, Nitrogen Dioxide (0 - 50.0 ppm), EC 35 GfG Gas Detection, Nitrogen Dioxide (0 - 50.0 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Nitrogen Dioxide (0 - 50.0 ppm). EC 35

Our Price: $1,630.00 Each
GfG Gas Detection, Sulfur Dioxide (0 - 50.0 ppm), Relays, EC 36 GfG Gas Detection, Sulfur Dioxide (0 - 50.0 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Sulfur Dioxide (0 - 50.0 ppm). EC 36

Our Price: $1,630.00 Each
GfG Gas Detection, Carbon Monoxide (0 - 1,000 ppm),  EC 35 GfG Gas Detection, Carbon Monoxide (0 - 1,000 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Carbon Monoxide (0 - 1,000 ppm). EC 35

Our Price: $1,635.00 Each
GfG Gas Detection, Carbon Monoxide (0 - 2,000 ppm), EC 35 GfG Gas Detection, Carbon Monoxide (0 - 2,000 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Carbon Monoxide (0 - 2,000 ppm). EC 35

Our Price: $1,635.00 Each
GfG Gas Detection, Ammonia (0 - 100 ppm),  EC 35 GfG Gas Detection, Ammonia (0 - 100 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Ammonia (0 - 100 ppm). EC 35

Our Price: $1,645.00 Each
GfG Gas Detection, Ammonia (0 - 200 ppm),  EC 35 GfG Gas Detection, Ammonia (0 - 200 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Ammonia (0 - 200 ppm). EC 35

Our Price: $1,645.00 Each
GfG Gas Detection, Ammonia (0 - 500 ppm),  EC 35 GfG Gas Detection, Ammonia (0 - 500 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Ammonia (0 - 500 ppm). EC 35

Our Price: $1,645.00 Each
GfG Gas Detection, Hydrogen Cyanide (0 - 200.0 ppm), Relays, EC 36 GfG Gas Detection, Hydrogen Cyanide (0 - 200.0 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Hydrogen Cyanide (0 - 200.0 ppm). EC 36

Our Price: $1,655.00 Each
GfG Gas Detection, Chlorine (0 - 50 ppm), EC 35 GfG Gas Detection, Chlorine (0 - 50 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Chlorine (0 - 50 ppm). EC 35

Our Price: $1,660.00 Each
OTIS Fixed Gas Detector, VOC (0 - 1,000 PPM), OI-6000 OTIS Fixed Gas Detector, VOC (0 - 1,000 PPM), OI-6000

OTIS Fixed Gas Monitor for Volatile Organic Compounds (0 - 1,000 PPM), PID Sensor. OI-6000

Our Price: $1,700.00 Each
OTIS Fixed Gas Detector, VOC (0 - 2,000 PPM), OI-6000 OTIS Fixed Gas Detector, VOC (0 - 2,000 PPM), OI-6000

OTIS Fixed Gas Monitor for Volatile Organic Compounds (0 - 2,000 PPM), PID Sensor. OI-6000

Our Price: $1,700.00 Each
GfG Gas Detection, Nitrogen Oxide (0 - 300.0 ppm), Relays, EC 36 GfG Gas Detection, Nitrogen Oxide (0 - 300.0 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Nitrogen Oxide (0 - 300.0 ppm). EC 36

Our Price: $1,710.00 Each
GfG Gas Detection, Nitrogen Dioxide (0 - 50.0 ppm), Relays, EC 36 GfG Gas Detection, Nitrogen Dioxide (0 - 50.0 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Nitrogen Dioxide (0 - 50.0 ppm). EC 36

Our Price: $1,730.00 Each
GfG Gas Detection, Hydrogen Chloride (0 - 30.0 ppm),  EC 35 GfG Gas Detection, Hydrogen Chloride (0 - 30.0 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Hydrogen Chloride (0 - 30.0 ppm). EC 35

Our Price: $1,735.00 Each
GfG Gas Detection, Carbon Monoxide (0 - 1,000 ppm), Relays, EC 36 GfG Gas Detection, Carbon Monoxide (0 - 1,000 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Carbon Monoxide (0 - 1,000 ppm). EC 36

Our Price: $1,735.00 Each
GfG Gas Detection, Carbon Monoxide (0 - 2,000 ppm), Relays, EC 36 GfG Gas Detection, Carbon Monoxide (0 - 2,000 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Carbon Monoxide (0 - 2,000 ppm). EC 36

Our Price: $1,735.00 Each
GfG Gas Detection, Ammonia (0 - 100 ppm), Relays, EC 36 GfG Gas Detection, Ammonia (0 - 100 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Ammonia (0 - 100 ppm). EC 36

Our Price: $1,745.00 Each
GfG Gas Detection, Ammonia (0 - 200 ppm), Relays, EC 36 GfG Gas Detection, Ammonia (0 - 200 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Ammonia (0 - 200 ppm). EC 36

Our Price: $1,745.00 Each
GfG Gas Detection, Ammonia (0 - 500 ppm), Relays, EC 36 GfG Gas Detection, Ammonia (0 - 500 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Ammonia (0 - 500 ppm). EC 36

Our Price: $1,745.00 Each
GfG Gas Detection, Chlorine (0 - 50 ppm), Relays, EC 36 GfG Gas Detection, Chlorine (0 - 50 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Chlorine (0 - 50 ppm). EC 36

Our Price: $1,760.00 Each
GfG Gas Detection, Ethylene Oxide (0 - 20.0 ppm), EC 35 GfG Gas Detection, Ethylene Oxide (0 - 20.0 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Ethylene Oxide (0 - 20.0 ppm). EC 35

Our Price: $1,765.00 Each
OTIS Fixed Gas Detector, VOC (0 - 10 PPM), OI-6000 OTIS Fixed Gas Detector, VOC (0 - 10 PPM), OI-6000

OTIS Fixed Gas Monitor for Volatile Organic Compounds (0 - 10 PPM), PID Sensor. OI-6000

Our Price: $1,810.00 Each
OTIS Fixed Gas Detector, VOC (0 - 20 PPM), OI-6000 OTIS Fixed Gas Detector, VOC (0 - 20 PPM), OI-6000

OTIS Fixed Gas Monitor for Volatile Organic Compounds (0 - 20 PPM), PID Sensor. OI-6000

Our Price: $1,810.00 Each
OTIS Fixed Gas Detector, VOC (0 - 50 PPM), OI-6000 OTIS Fixed Gas Detector, VOC (0 - 50 PPM), OI-6000

OTIS Fixed Gas Monitor for Volatile Organic Compounds (0 - 50 PPM), PID Sensor. OI-6000

Our Price: $1,810.00 Each
GfG Gas Detection, Chlorine Dioxide (0 - 1.00 ppm), EC 35 GfG Gas Detection, Chlorine Dioxide (0 - 1.00 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Chlorine Dioxide (0 - 1.00 ppm). EC 35

Our Price: $1,835.00 Each
GfG Gas Detection, Ozone (0 - 1.00 ppm), EC 35 GfG Gas Detection, Ozone (0 - 1.00 ppm), EC 35

GfG Fixed Gas Sensor Assembly for Ozone (0 - 1.00 ppm). EC 35

Our Price: $1,835.00 Each
GfG Gas Detection, Hydrogen Chloride (0 - 30.0 ppm), Relays, EC 36 GfG Gas Detection, Hydrogen Chloride (0 - 30.0 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Hydrogen Chloride (0 - 30.0 ppm). EC 36

Our Price: $1,835.00 Each
OTIS Fixed Gas Detector, VOC (0 - 1,000 PPM), Relays, OI-6000 OTIS Fixed Gas Detector, VOC (0 - 1,000 PPM), Relays, OI-6000

OTIS Fixed Gas Monitor for Volatile Organic Compounds (0 - 1,000 PPM), PID Sensor, with Relays. OI-6000

Our Price: $1,845.00 Each
OTIS Fixed Gas Detector, VOC (0 - 2,000 PPM), Relays, OI-6000 OTIS Fixed Gas Detector, VOC (0 - 2,000 PPM), Relays, OI-6000

OTIS Fixed Gas Monitor for Volatile Organic Compounds (0 - 2,000 PPM), PID Sensor, with Relays. OI-6000

Our Price: $1,845.00 Each
GfG Gas Detection, Hydrogen (0 - 4% Vol.),  EC 35 GfG Gas Detection, Hydrogen (0 - 4% Vol.), EC 35

GfG Fixed Gas Sensor Assembly for Hydrogen (0 - 4% Vol.). EC 35

Our Price: $1,865.00 Each
GfG Gas Detection, Ethylene Oxide (0 - 20.0 ppm), Relays, EC 36 GfG Gas Detection, Ethylene Oxide (0 - 20.0 ppm), Relays, EC 36

GfG Fixed Gas Sensor Assembly for Ethylene Oxide (0 - 20.0 ppm). EC 36

Our Price: $1,865.00 Each
   
 
Fixed Gas Sensor Assemblies