SGX-4x Electrochemical Sensors

Amphenol SGX Sensortech SGX-4x Electrochemical Sensors are available in a broad range of sensing types for industrial and commercial gas applications. These air quality sensors allow instrument manufacturers a greater choice when selecting sensors for carbon monoxide (CO), hydrogen sulfide (H2S), oxygen (O2), ammonia (NH3), chlorine (Cl2), multi-gas nitric oxide (NO), nitrogen dioxide (NO2), and sulfur dioxide (SO2). These sensors have a minimum operating temperature of -40°C, -30°C, or -20°C, and a maximum operating temperature of +50°C or +60°C. Amphenol SGX Sensortech SGX-4x Electrochemical Sensors are available in 20mm industrial standard packages and act as drop-in replacements for existing sensor types in this size.

Results: 24
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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Type
Sensor Type
Measuring Range - Min
Measuring Range - Max
Output Type
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Series
Amphenol SGX Sensortech Air Quality Sensors 4 Series SO2 Gas Sensor - 20ppm
Datasheet
33In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Sulfur Dioxide 0 PPM 20 PPM Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series Electrochemical Ozone Sensor 20ppm
Datasheet
2In Stock
20Expected 2026-07-23
Min.: 1
Mult.: 1

Gas Sensor Ozone (O3) - 30 C + 50 C
Amphenol SGX Sensortech Air Quality Sensors 4 Series High Conc CO Sensor - 10000ppm
Datasheet
6In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Carbon Monoxide 0 PPM 10000 PPM Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series Ammonia Sensor - 300ppm
Datasheet
1In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Ammonia 0 PPM 300 PPM Analog - 40 C + 50 C Electro-Chemical


Amphenol SGX Sensortech Air Quality Sensors 4 Series NO2 Sensor 2 Electrode - 20ppm
Datasheet
6In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Nitrogen Dioxide 0 PPM 20 PPM Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series CO Sensor - 1,000ppm
Datasheet
9In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Carbon Monoxide 0 PPM 1000 PPM Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series ETO Gas Sensor 20ppm
Datasheet
14In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Ethylene Oxide 0 PPM 20 PPM Analog - 20 C + 50 C Electro-Chemical


Amphenol SGX Sensortech Air Quality Sensors 4 Series Nitrogen Dioxide Sensor-30ppm
Datasheet
29In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Nitrogen Dioxide 0 PPM 30 PPM Analog 1.3 V - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors MEMS Pellistor Gas Sensor, 0-5% volume Flammable Gases, Hazardous Area safe (ATEX certified), Flameproof enclosure Sensing(EX-da certified), with pins
Datasheet
19In Stock
Min.: 1
Mult.: 1

MEMS Pellistor Flammable 0 % 5 % Analog 1.6 V 3.2 V - 20 C + 60 C MP7227 Series
Amphenol SGX Sensortech Air Quality Sensors 4 Series Electrochemical Fluorine 5ppm
Datasheet
9In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Fluorine 0 PPM 5 PPM Analog - 20 C + 40 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series Electrochemical Bromine 5ppm
Datasheet
23In Stock
Min.: 1
Mult.: 1

Gas Sensor Multi-Gas - 20 C + 40 C
Amphenol SGX Sensortech Air Quality Sensors 4 Series Ammonia Sensor - 100ppm
Datasheet
53In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Ammonia 0 PPM 100 PPM Analog - 40 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series Ammonia Sensor - 1000ppm
Datasheet
40In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Ammonia 0 PPM 1000 PPM Analog - 40 C + 50 C Electro-Chemical


Amphenol SGX Sensortech Air Quality Sensors 4 Series Oxygen Sensor 25% 2 yr life
Datasheet
85In Stock
Min.: 1
Mult.: 1
No
Electrochemical 4-series Oxygen 0 % 25 % Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series CL2 Gas Sensor - 10ppm
Datasheet
6In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Chlorine 0 PPM 10 PPM Analog - 20 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series CO Sensor 1,000ppm 8In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Carbon Monoxide 0 PPM 2000 PPM Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series Dual-Tox Sensor-500ppm/200ppm
Datasheet
2In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Carbon Monoxide + Hydrogen Sulfide 0 PPM 500 PPM, 200 PPM Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series H2S Sensor - 100ppm
Datasheet
32In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Hydrogen Sulfide 0 PPM 100 PPM Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series Electrochemical Hydrogen Sulfide sensor 300ppm
Datasheet
2In Stock
Min.: 1
Mult.: 1

Electro-Chemical H2S 0 PPM 300 PPM Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series Lead free O2 Sensor,>5years
Datasheet
9In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Oxygen 0 % 25 % Analog - 40 C + 60 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series Electrochemical Hydrogen Chloride 30ppm
Datasheet
2In Stock
Min.: 1
Mult.: 1

Gas Sensor Multi-Gas - 20 C + 40 C
Amphenol SGX Sensortech Air Quality Sensors 4 Series Electrochemical Hydrogen Fluoride 10ppm
Datasheet
6In Stock
Min.: 1
Mult.: 1

Electrochemical 4-series Hydrogen Fluoride 0 PPM 10 PPM Analog - 20 C + 55 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 ser O2 sens 0-25% 3 year life
Datasheet
24In Stock
20Expected 2026-07-23
Min.: 1
Mult.: 1
No
Electrochemical 4-series Oxygen 0 % 25 % Analog - 30 C + 50 C Electro-Chemical
Amphenol SGX Sensortech Air Quality Sensors 4 Series NO Gas Sensor - 250ppm
Datasheet
10On Order
Min.: 1
Mult.: 1

Electrochemical 4-series Nitric Oxide 0 PPM 250 PPM Analog - 30 C + 50 C Electro-Chemical