Air Quality Sensors – Mouser Costa Rica

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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 (CRC) 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: ₡58 614,81 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	₡58 614,81 ₡47 627,79 ₡45 629,20 ₡43 734,71 View ₡43 245,47 ₡42 339,86 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 SO2 Gas Sensor - 20ppm SGX-4SO2 Amphenol SGX Sensortech 1: ₡48 288,78 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	₡48 288,78 ₡44 796,46 ₡43 495,29 ₡41 939,10 ₡40 872,15	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 Series High Conc CO Sensor - 10000ppm SGX-4CO-10K Amphenol SGX Sensortech 1: ₡47 908,84 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	₡47 908,84 ₡40 414,14 ₡35 251,12 ₡32 019,03 View ₡31 633,89 ₡30 098,51 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: ₡71 027,91 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	₡71 027,91 ₡57 761,25 ₡45 124,35 ₡43 375,59	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: ₡35 880,88 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	₡35 880,88 ₡35 063,75 ₡25 481,99 ₡23 655,15 View ₡22 968,14 ₡21 765,86 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 CO Sensor - 1,000ppm SGX-4CO-LC Amphenol SGX Sensortech 1: ₡24 847,02 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	₡24 847,02 ₡20 948,73 ₡15 410,98 ₡14 890,52 View 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 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: ₡30 702,25 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	₡30 702,25 ₡27 433,73 ₡25 409,12 ₡25 403,92 View ₡25 190,53 ₡24 623,22 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 Nitrogen Dioxide Sensor-30ppm SGX-4NO2 Amphenol SGX Sensortech 1: ₡24 513,92 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	₡24 513,92 ₡22 577,79 ₡21 854,34 ₡20 990,37 View ₡20 397,04 ₡19 101,08	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 ETO Gas Sensor 20ppm SGX-4ETO Amphenol SGX Sensortech 1: ₡60 967,32 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	₡60 967,32 ₡52 259,93 ₡47 992,11 ₡45 124,35 View ₡44 812,07 ₡42 683,37	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 Electrochemical Bromine 5ppm SGX-BR2-5 Amphenol SGX Sensortech 1: ₡136 710,65 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	₡136 710,65	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: ₡95 880,14 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	₡95 880,14 ₡78 709,98 ₡76 248,18 ₡74 572,28 View 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 Electrochemical Fluorine 5ppm SGX-F2-5 Amphenol SGX Sensortech 1: ₡142 180,74 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	₡142 180,74 ₡134 894,22	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 Ammonia Sensor - 1000ppm SGX-4NH3-1000 Amphenol SGX Sensortech 1: ₡50 911,93 33In 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	33In Stock	₡50 911,93 ₡47 258,26 ₡43 146,58 ₡38 717,42 View 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 CL2 Gas Sensor - 10ppm SGX-4CL2 Amphenol SGX Sensortech 1: ₡65 271,57 5In Stock	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	5In Stock	₡65 271,57 ₡59 910,77 ₡45 124,35 ₡45 020,26 ₡43 375,59	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 Dual-Tox Sensor-500ppm/200ppm SGX-4DT Amphenol SGX Sensortech 1: ₡41 876,65 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	₡41 876,65 ₡35 178,26 ₡26 413,62 ₡26 044,09 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: ₡20 178,44 6In Stock 20Expected 11/26/2026	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	6In Stock 20Expected 11/26/2026	₡20 178,44 ₡18 544,18	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: ₡24 555,56 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	₡24 555,56 ₡22 614,22 ₡21 895,98 ₡21 026,80 View ₡20 438,68 ₡18 778,39 Quote	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: ₡52 598,23 8In 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	8In Stock	₡52 598,23 ₡48 835,27 ₡47 435,22 ₡45 759,32 View ₡44 609,09 ₡43 375,59	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 Electrochemical Hydrogen Chloride 30ppm SGX-HCL-30 Amphenol SGX Sensortech 1: ₡158 872,06 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	₡158 872,06 ₡149 139,36 ₡145 272,30 Quote Quote	Min.: 1 Mult.: 1		Gas Sensor	Multi-Gas						- 20 C	+ 40 C	Through Hole	Electro-Chemical
Air Quality Sensors 4 ser O2 sens 0-25% 3 year life SGX-4OX-EL Amphenol SGX Sensortech 1: ₡31 378,86 18In Stock	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	18In Stock	₡31 378,86 ₡28 979,51 ₡28 084,31 ₡27 012,15 View ₡26 278,30 ₡24 706,49 Quote	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 Oxygen Sensor 25% 2 yr life SGX-4OX Amphenol SGX Sensortech 1: ₡19 413,36 17In Stock 140On Order	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	17In Stock 140On Order	₡19 413,36	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 Ammonia Sensor - 100ppm SGX-4NH3-100 Amphenol SGX Sensortech 1: ₡41 147,99 45Expected 11/16/2026	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	45Expected 11/16/2026	₡41 147,99 ₡38 108,48 ₡36 973,86 ₡35 620,65 View ₡34 694,22 ₡33 840,66 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 CO Sensor 1,000ppm SGX-4CO Amphenol SGX Sensortech 1: ₡20 886,28 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	₡20 886,28 ₡19 194,76 ₡17 976,87 ₡17 446,00 View ₡17 154,54 ₡16 811,03 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Carbon Monoxide	0 PPM	2000 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: ₡32 664,41 9Expected 12/24/2026	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	9Expected 12/24/2026	₡32 664,41 ₡30 155,77 ₡28 838,99 ₡26 590,58 View ₡26 179,41 ₡24 347,37 Quote	Min.: 1 Mult.: 1		Electrochemical 4-series	Oxygen	0 %	25 %	Analog			- 40 C	+ 60 C	Through Hole	Electro-Chemical

SGX-4x Electrochemical Sensors

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