Air Quality Sensors – Mouser Korea, Republic of

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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.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (KRW) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Type	Sensor Type	Measuring Range - Min	Measuring Range - Max	Output Type	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Series
Air Quality Sensors 4 Series Electrochemical Ozone sensor 5ppm SGX-4O3-5 Amphenol SGX Sensortech 1: ₩171,787.2 2In Stock New Product	Mfr. Part # SGX-4O3-5 Mouser Part # 523-SGX-4O3-5 New Product	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Electrochemical Ozone sensor 5ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	2In Stock	₩171,787.2 ₩142,662 ₩134,846.4 ₩131,913.6 View ₩130,494 ₩127,951.2 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Ozone	0 PPM	5 PPM	Analog			- 20 C	+ 50 C		Electro-Chemical
Air Quality Sensors 4 Series CO Sensor - 1,000ppm SGX-4CO-LC Amphenol SGX Sensortech 1: ₩90,651.6 8In Stock	Mfr. Part # SGX-4CO-LC Mouser Part # 523-SGX-4CO-LC	Amphenol SGX Sensortech	Air Quality Sensors 4 Series CO Sensor - 1,000ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	8In Stock	₩90,651.6 ₩87,048 ₩46,191.6 ₩42,463.2 View ₩42,198 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Carbon Monoxide	0 PPM	1000 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series High Conc CO Sensor - 10000ppm SGX-4CO-10K Amphenol SGX Sensortech 1: ₩143,598 6In Stock	Mfr. Part # SGX-4CO-10K Mouser Part # 523-SGX-4CO-10K	Amphenol SGX Sensortech	Air Quality Sensors 4 Series High Conc CO Sensor - 10000ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	6In Stock	₩143,598 ₩121,134 ₩105,658.8 ₩95,846.4 View ₩94,239.6 ₩90,324 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Carbon Monoxide	0 PPM	10000 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Ammonia Sensor - 300ppm SGX-4NH3-300 Amphenol SGX Sensortech 1: ₩212,893.2 1In Stock	Mfr. Part # SGX-4NH3-300 Mouser Part # 523-SGX-4NH3-300	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Ammonia Sensor - 300ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	1In Stock	₩212,893.2 ₩173,128.8 ₩135,252 ₩130,010.4	Min.: 1 Mult.: 1		Electrochemical 4-series	Ammonia	0 PPM	300 PPM	Analog			- 40 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series NO2 Sensor 2 Electrode - 20ppm SGX-4NO2-2E Amphenol SGX Sensortech 1: ₩107,546.4 6In Stock	Mfr. Part # SGX-4NO2-2E Mouser Part # 523-SGX-4NO2-2E	Amphenol SGX Sensortech	Air Quality Sensors 4 Series NO2 Sensor 2 Electrode - 20ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	6In Stock	₩107,546.4 ₩105,097.2 ₩76,377.6 ₩69,825.6 View ₩68,047.2 ₩64,677.6 ₩64,131.6 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Nitrogen Dioxide	0 PPM	20 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series ETO Gas Sensor 20ppm SGX-4ETO Amphenol SGX Sensortech 1: ₩179,509.2 14In Stock	Mfr. Part # SGX-4ETO Mouser Part # 523-SGX-4ETO	Amphenol SGX Sensortech	Air Quality Sensors 4 Series ETO Gas Sensor 20ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	14In Stock	₩179,509.2 ₩157,294.8 ₩142,116 ₩135,252 View ₩132,069.6 ₩127,935.6	Min.: 1 Mult.: 1		Electrochemical 4-series	Ethylene Oxide	0 PPM	20 PPM	Analog			- 20 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Nitrogen Dioxide Sensor-30ppm SGX-4NO2 Amphenol SGX Sensortech 1: ₩73,476 27In Stock	Mfr. Part # SGX-4NO2 Mouser Part # 523-SGX-4NO2	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Nitrogen Dioxide Sensor-30ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	27In Stock	₩73,476 ₩67,672.8 ₩65,504.4 ₩62,914.8 View ₩61,136.4 ₩57,252	Min.: 1 Mult.: 1		Electrochemical 4-series	Nitrogen Dioxide	0 PPM	30 PPM	Analog		1.3 V	- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Electrochemical Fluorine 5ppm SGX-F2-5 Amphenol SGX Sensortech 1: ₩387,394.8 9In Stock	Mfr. Part # SGX-F2-5 Mouser Part # 523-SGX-F2-5	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Electrochemical Fluorine 5ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	9In Stock	₩387,394.8 ₩326,882.4 ₩318,255.6 ₩306,259.2 ₩274,996.8	Min.: 1 Mult.: 1		Electrochemical 4-series	Fluorine	0 PPM	5 PPM	Analog			- 20 C	+ 40 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Electrochemical Bromine 5ppm SGX-BR2-5 Amphenol SGX Sensortech 1: ₩387,379.2 23In Stock	Mfr. Part # SGX-BR2-5 Mouser Part # 523-SGX-BR2-5	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Electrochemical Bromine 5ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	23In Stock	₩387,379.2 ₩326,866.8 ₩303,778.8 ₩278,647.2 View ₩274,825.2 Quote	Min.: 1 Mult.: 1		Gas Sensor	Multi-Gas						- 20 C	+ 40 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Electrochemical Hydrogen Fluoride 10ppm SGX-HF-10 Amphenol SGX Sensortech 1: ₩279,177.6 6In Stock	Mfr. Part # SGX-HF-10 Mouser Part # 523-SGX-HF-10	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Electrochemical Hydrogen Fluoride 10ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	6In Stock	₩279,177.6 ₩230,568 ₩230,505.6 ₩221,083.2 View ₩215,514 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Hydrogen Fluoride	0 PPM	10 PPM	Analog			- 20 C	+ 55 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Ammonia Sensor - 100ppm SGX-4NH3-100 Amphenol SGX Sensortech 1: ₩121,539.6 20In Stock	Mfr. Part # SGX-4NH3-100 Mouser Part # 523-SGX-4NH3-100	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Ammonia Sensor - 100ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	20In Stock	₩121,539.6 ₩112,538.4 ₩109,184.4 ₩108,357.6 View ₩102,429.6 ₩99,918 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Ammonia	0 PPM	100 PPM	Analog			- 40 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Ammonia Sensor - 1000ppm SGX-4NH3-1000 Amphenol SGX Sensortech 1: ₩152,599.2 35In Stock	Mfr. Part # SGX-4NH3-1000 Mouser Part # 523-SGX-4NH3-1000	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Ammonia Sensor - 1000ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	35In Stock	₩152,599.2 ₩141,648 ₩137,560.8 ₩129,324 View ₩114,660 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Ammonia	0 PPM	1000 PPM	Analog			- 40 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series SO2 Gas Sensor - 20ppm SGX-4SO2 Amphenol SGX Sensortech 1: ₩144,736.8 29In Stock	Mfr. Part # SGX-4SO2 Mouser Part # 523-SGX-4SO2	Amphenol SGX Sensortech	Air Quality Sensors 4 Series SO2 Gas Sensor - 20ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	29In Stock	₩144,736.8 ₩134,269.2 ₩130,369.2 ₩125,704.8 View ₩122,506.8 ₩121,773.6 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Sulfur Dioxide	0 PPM	20 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 ser O2 sens 0-25% 3 year life SGX-4OX-EL Amphenol SGX Sensortech 1: ₩94,052.4 Lead-Time 10 Weeks	Mfr. Part # SGX-4OX-EL Mouser Part # 523-SGX-4OX-EL	Amphenol SGX Sensortech	Air Quality Sensors 4 ser O2 sens 0-25% 3 year life Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	Lead-Time 10 Weeks	₩94,052.4 ₩86,845.2 ₩84,177.6 ₩84,162 View ₩78,764.4 ₩73,413.6 ₩73,086 Quote	Min.: 1 Mult.: 1	No	Electrochemical 4-series	Oxygen	0 %	25 %	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
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 MP7227-R Amphenol SGX Sensortech 1: ₩93,927.6 17In Stock	Mfr. Part # MP7227-R Mouser Part # 523-MP7227-R	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 Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	17In Stock	₩93,927.6 ₩83,335.2 ₩79,419.6 ₩73,819.2 View ₩72,368.4 ₩71,526 ₩71,479.2 Quote	Min.: 1 Mult.: 1		MEMS Pellistor	Flammable	0 %	5 %	Analog	1.6 V	3.2 V	- 20 C	+ 60 C	PCB Mount	MPEL
Air Quality Sensors 4 Series Dual-Tox Sensor-500ppm/200ppm SGX-4DT Amphenol SGX Sensortech 1: ₩125,517.6 1In Stock	Mfr. Part # SGX-4DT Mouser Part # 523-SGX-4DT	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Dual-Tox Sensor-500ppm/200ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	1In Stock	₩125,517.6 ₩103,630.8 ₩79,170 ₩76,408.8 View Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Carbon Monoxide + Hydrogen Sulfide	0 PPM	500 PPM, 200 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series H2S Sensor - 100ppm SGX-4H2S-100 Amphenol SGX Sensortech 1: ₩60,481.2 16In Stock	Mfr. Part # SGX-4H2S-100 Mouser Part # 523-SGX-4H2S-100	Amphenol SGX Sensortech	Air Quality Sensors 4 Series H2S Sensor - 100ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	16In Stock	₩60,481.2 ₩55,582.8 ₩53,757.6 ₩51,573.6 View ₩51,495.6 ₩50,949.6	Min.: 1 Mult.: 1		Electrochemical 4-series	Hydrogen Sulfide	0 PPM	100 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Electrochemical Hydrogen Sulfide sensor 300ppm SGX-4H2S-300 Amphenol SGX Sensortech 1: ₩73,600.8 2In Stock	Mfr. Part # SGX-4H2S-300 Mouser Part # 523-SGX-4H2S-300	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Electrochemical Hydrogen Sulfide sensor 300ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	2In Stock	₩73,600.8 ₩67,782 ₩65,629.2 ₩63,024 View ₩61,261.2 ₩55,582.8	Min.: 1 Mult.: 1		Electro-Chemical	H2S	0 PPM	300 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series NO Gas Sensor - 250ppm SGX-4NO-250 Amphenol SGX Sensortech 1: ₩157,653.6 9In Stock	Mfr. Part # SGX-4NO-250 Mouser Part # 523-SGX-4NO-250	Amphenol SGX Sensortech	Air Quality Sensors 4 Series NO Gas Sensor - 250ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	9In Stock	₩157,653.6 ₩146,374.8 ₩142,178.4 ₩137,155.2 View ₩133,707.6 ₩130,010.4	Min.: 1 Mult.: 1		Electrochemical 4-series	Nitric Oxide	0 PPM	250 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Lead free O2 Sensor,>5years SGX-4OX-ROHS Amphenol SGX Sensortech 1: ₩97,905.6 10In Stock	Mfr. Part # SGX-4OX-ROHS Mouser Part # 523-SGX-4OX-ROHS	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Lead free O2 Sensor,>5years Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	10In Stock	₩97,905.6 ₩90,386.4 ₩86,439.6 ₩79,482 View ₩77,454 ₩72,711.6	Min.: 1 Mult.: 1		Electrochemical 4-series	Oxygen	0 %	25 %	Analog			- 40 C	+ 60 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Oxygen Sensor 25% 2 yr life SGX-4OX Amphenol SGX Sensortech 1: ₩58,858.8 19In Stock 140Expected 10/9/2026	Mfr. Part # SGX-4OX Mouser Part # 523-SGX-4OX	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Oxygen Sensor 25% 2 yr life Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	19In Stock 140Expected 10/9/2026	₩58,858.8 ₩58,671.6 ₩58,188	Min.: 1 Mult.: 1	No	Electrochemical 4-series	Oxygen	0 %	25 %	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series Electrochemical Hydrogen Chloride 30ppm SGX-HCL-30 Amphenol SGX Sensortech 1: ₩419,702.4 2In Stock	Mfr. Part # SGX-HCL-30 Mouser Part # 523-SGX-HCL-30	Amphenol SGX Sensortech	Air Quality Sensors 4 Series Electrochemical Hydrogen Chloride 30ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	2In Stock	₩419,702.4 ₩391,809.6 ₩391,794 View Quote	Min.: 1 Mult.: 1		Gas Sensor	Multi-Gas						- 20 C	+ 40 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series CL2 Gas Sensor - 10ppm SGX-4CL2 Amphenol SGX Sensortech 1: ₩196,357.2 5Expected 10/15/2026	Mfr. Part # SGX-4CL2 Mouser Part # 523-SGX-4CL2	Amphenol SGX Sensortech	Air Quality Sensors 4 Series CL2 Gas Sensor - 10ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	5Expected 10/15/2026	₩196,357.2 ₩165,999.6 ₩135,252 ₩133,302 ₩130,010.4	Min.: 1 Mult.: 1		Electrochemical 4-series	Chlorine	0 PPM	10 PPM	Analog			- 20 C	+ 50 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 Series CO Sensor 1,000ppm SGX-4CO Amphenol SGX Sensortech 1: ₩62,602.8 10Expected 11/26/2026	Mfr. Part # SGX-4CO Mouser Part # 523-SGX-4CO	Amphenol SGX Sensortech	Air Quality Sensors 4 Series CO Sensor 1,000ppm Learn More about Amphenol SGX Sensortech sgx 4x sensors	Datasheet	10Expected 11/26/2026	₩62,602.8 ₩57,532.8 ₩56,862 ₩52,291.2 View ₩51,417.6 ₩50,388 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Carbon Monoxide	0 PPM	2000 PPM	Analog			- 30 C	+ 50 C	Through Hole	Electro-Chemical

SGX-4x Electrochemical Sensors

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