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Home > Products > Sensors, Transducers > Gas Sensors

Gas Sensors

Manufacturer	Series	Packaging	Product Status	Type	Oxygen Range	Accuracy	Output	Operating Temperature	Voltage - Supply	Current - Supply
Adafruit Industries LLC Amphenol Advanced Sensors Amphenol SGX Sensortech ams-OSRAM USA INC. Atlas Scientific Automation Components, Inc. Carlo Gavazzi Inc. City Technology Comet America, LP Dart Sensors DFRobot Dwyer Instruments Ellenex ELT SENSOR CORP Gas Sensing Solutions Ltd Honeywell Sensing and Productivity Solutions ifm efector, inc. ILLUMRA KEMET L-com Microchip Technology National Control Devices NI Olimex LTD Parallax Inc. Posifa Technologies ScioSense Seeed Senseair SHARP/Socle Technology Smart Sensor Devices SparkFun Electronics Spec Sensors (A Division of Interlink Electronics)	* - 4 7 APC1 BREEZE CDO2-L CDO2-N CMOSens® CozIR®-A DGS2 970 ED35XX ExplorIR®-M ExplorIR®-W EZO-O2™ INIR IR1 IR15 IR2 IR3 IR600 K30 K33 MF010 MF020 MP PGS4100 PID PR52 PS1 PS4 QGC QGS S8 SEN5x SEN6x SenseCAP SGP41 SGX SN-GC SprintIR®-6S SprintIR®-R SprintIR®-W SRAQ SRMF Sunlight Sunrise Sunrise HVAC T3000 T3022 T3030 T5000 T5100 T8000 Telaire® U9101 Ventostat® VQ10 VQ2 VQ20 VQ3 VQ30 VQ35 VQ40 VQ5 VQ500 VQ6 VQ600 XENSIV™ Zirconia	Bag Box Bulk Retail Package Tape & Box (TB) Tape & Reel (TR) Tray Tube	Active Discontinued at Digi-Key Obsolete	- Acetone (CH3CO) Acetylene Acetylene (C2H2) Air Quality Air Quality, Humidity, Particulate Matter, Temperature Alcohol (C2H6O) Alcohol, Benzine Alcohol, Butane, Hydrogen, Methane, Propane Ammonia (NH3) Ammonia (NH3), Carbon Monoxide (CO) Anaesthesia Arsine (AsH3) Benzene (C6H6) Bromine (Br) Butane (C4H10) Butanol (C4H9OH), n-Butane (C4H10) Carbon Dioxide (CO2) Carbon Dioxide (CO2), Humidity, Temperature Carbon Dioxide (CO2), Methane Carbon Monoxide (CO) Carbon Monoxide (CO), Hydrogen (H2) Carbon Monoxide (CO), Hydrogen Sulfide (H2S) Carbon Monoxide (CO), Methane (CH4) Carbon Monoxide (CO), Nitrogen Dioxide (NO2) Carbon Monoxide (CO), Propane (C3H8) Chlorine (CI2) Chlorine (CI2), Nitrogen Dioxide (NO2), Ozone (O3) Chlorine (CL2) Chlorine Dioxide (CIO2) Chlorine Dioxide (CLO2) CO, CO2, HC CO, NO2 Combustibles (GENL) Diborane (B2H6) Dichlorodifluoromethane (R-12) Diesel, Genl Ethanol, Genl Ethylene Ethylene (C2H4) Ethylene Oxide (C2H4O) Ethylene Oxide (ETO) Flammable Gas Fluorine (F) Formaldehyde (HCHO) Freon (R134a) Gas, Carbon Dioxide Gasoline Gasoline, Genl Genl, Hexane Genl, Iso-Propyl Alcohol Genl, Toluene Germane (GeH4) Humidity, NOx, Particulate Matter, Temperature, VOC Humidity, Particulate Matter, Temperature, VOC Hydrocarbons Hydrocarbons, Methane Hydrogen (H2) Hydrogen (H2), Methane (CH4) Hydrogen Bromide (HBr) Hydrogen Chloride (HCl) Hydrogen Cyanide (HCN) Hydrogen Fluoride (HF) Hydrogen Sulfide (H2S) Hydrogen Sulphide (H2S) Hydrogen, Methane, Propane Iso-Butane (C4H10) Iso-Pentane (C5H12) Isobutane (C4H10) Light Gases Liquefied Natural Gas (LNG), Liquefied Petroleum Gas (LPG) Liquefied Petroleum Gas (LPG) Methane Methane (CH4) Methanol (CH3OH) Methyl Mercaptan (CH4S) Natural Gas (CH4) Natural Gas (CH4), Propane (C3H8) Natural Gas, Propane Nitric Oxide (NO) Nitrogen (N2) Nitrogen Dioxide (NO2) Nitrogen Oxide (NOx) Oxygen Oxygen (O2) Ozone (O3) Particulate Matter Phosphine (PH3) Propane Propane (C3H8) Propane (C3H8), R290 Refrigerant Sensor, R32 (CH2F2) Respiratory Gases Silane (SiH4) Sulfur Dioxide Sulfur Dioxide (SO2) Sulphur Dioxide (SO2) Volatile Organic Compound (VOC)	- -1 mbar ~ 16 mbar 0 mbar ~ 1 bar 0 mbar ~ 10 bar 0 mbar ~ 12.5 bar 0 mbar ~ 125 bar 0 mbar ~ 125 mbar 0 mbar ~ 1250 mbar 0 mbar ~ 15 bar 0 mbar ~ 2.5 bar 0 mbar ~ 25 bar 0 mbar ~ 25 mbar 0 mbar ~ 250 bar 0 mbar ~ 250 mbar 0 mbar ~ 25000 mbar 0 mbar ~ 5 bar 0 mbar ~ 50 bar 0 mbar ~ 50 mbar 0 mbar ~ 500 mbar 0 mbar ~ 7.5 bar 0 mbar ~ 75 mbar 0 mbar ~ 750 mbar 0 mbar ~ 800 bar 0.01 mbar ~ 0.25 mbar 0.025 mbar ~ 50 mbar 0.25 mbar ~ 25 mbar 1 mbar ~ 1000 mbar 1 mbar ~ 250 mbar 100 bar 10000 mbar ~ 50 bar 125 mbar ~ 12.5 bar 1250 mbar ~ 250 bar 2 mbar ~ 3 bar 200 mbar ~ 2000 mbar 25 mbar ~ 250 mbar 25 mbar ~ 5 bar 250 mbar ~ 25 bar 250 mbar ~ 250 bar 250 mbar ~ 5 bar 2500 mbar ~ 25 bar 260 mbar ~ 1.26 bar 300 mbar ~ 1.1 bar 300 mbar ~ 1300 mbar 500 mbar ~ 10 bar 500 mbar ~ 2 bar 600 mbar ~ 1.2 bar 700 mbar ~ 1300 mbar 7500 mbar ~ 25 bar 7500 mbar ~ 250 bar 800 mbar ~ 1.2 bar 800 mbar ~ 1200 mbar 8750 mbar ~ 250 bar 911.88 mbar ~ 1114.52 mbar	- 10% 15% 2% 3% < 5 mbar ±0.01% ±0.3% ±0.4% ±0.5% ±1% ±10% ±15% ±1°C ±2% ±2.5% ±20% ±25% ±3% ±3% RH ±4% ±4.5% RH ±5% ±6%	- 0 V ~ 10 V 0 V ~ 2 V 0 V ~ 3 V 0 V ~ 3.3 V 0 V ~ 4 V 0 V ~ 5 V 0 V ~ 5 V, 0 V ~ 10 V (Selectable) 0.5 V ~ 3 V 0.5 V ~ 4.5 V 0V ~ 10V, 2V ~ 10V, 0mA ~ 20mA, 4mA ~ 20mA 0V ~ 10V, 2V ~ 10V, 0mA ~ 20mA, 4mA ~ 20mA, Relay 0V ~ 10V, 2V ~ 10V, 4mA ~ 20mA 0V ~ 10V, 4mA ~ 20mA, Relay, RS485 0V ~ 10V, 4mA ~ 20mA, RS485 0V ~ 10V, RS232 0V ~ 5V, 0V ~ 10V 0V ~ 5V, 0V ~ 10V, 4mA ~ 20mA 133µV ~ 189µV 150µV ~ 230µV 1V ~ 5V, 2V ~ 10V, 4mA ~ 20mA, Relay, RS485 1V ~ 5V, 2V ~ 10V, 4mA ~ 20mA, RS485 2 V ~ 10 V, 4mA ~ 20mA 2.5 V ~ 4 V 2.5V ~ 4V 2V ~ 10V, 4mA ~ 20mA 2V ~ 10V, 4mA ~ 20mA, Relay, RS485 2V ~ 10V, 4mA ~ 20mA, RS485 2V ~ 4V, 2.5V ~ 4.3V 30 mV ~ 50 mV 4 ~ 20mA 45mV, 64mV, 85mV 4mA ~ 20mA 4mA ~ 20mA, Relay 500mV 78µV ~ 108µV 80µV ~ 130µV Analog Analog, Digital Bluetooth CAN Current Ethernet I2C I2C, Modbus, PWM I2C, PWM I2C, PWM, UART I2C, SPI I2C, UART I2C, UART, Voltage LoRaWAN PWM PWM, UART Relay, RS485 RS232 RS485 UART UART, Voltage USB Voltage	- -10°C ~ 40°C -10°C ~ 45°C -10°C ~ 50°C -10°C ~ 55°C -10°C ~ 60°C -10°C ~ 70°C -10°C ~ 80°C -10°C ~ 85°C -20°C ~ 25°C -20°C ~ 40°C -20°C ~ 50°C -20°C ~ 55°C -20°C ~ 55°C (TA) -20°C ~ 60°C -20°C ~ 60°C (TA) -20°C ~ 65°C -20°C ~ 80°C -20°C ~ 85°C -25°C ~ 55°C -25°C ~ 85°C -30°C ~ 46°C -30°C ~ 50°C -30°C ~ 55°C -30°C ~ 60°C -30°C ~ 65°C -30°C ~ 70°C -30°C ~ 80°C -30°C ~ 85°C (TA) -40°C ~ 105°C -40°C ~ 125°C -40°C ~ 50°C -40°C ~ 55°C -40°C ~ 60°C -40°C ~ 65°C -40°C ~ 65°C (TA) -40°C ~ 70°C -40°C ~ 75°C -40°C ~ 85°C -40°C ~ 85°C (TA) -45°C ~ 65°C -50°C ~ 100°C (TA) -50°C ~ 125°C (TA) -5°C ~ 40°C (TA) -5°C ~ 50°C -5°C ~ 50°C (TA) 0°C ~ 25°C 0°C ~ 40°C 0°C ~ 49°C 0°C ~ 500°C 0°C ~ 50°C 0°C ~ 50°C (TA) 0°C ~ 60°C 0°C ~ 70°C 14 ~ 140°F (-10 ~ 60°C) 32 ~ 158°F (0 ~ 70°C) 5°C ~ 50°C 700°C	- 0.9V 1.3V 1.4V 1.4V ~ 1.6V, 4.9V ~ 5.1V 1.5V ~ 3.3V 1.62V ~ 1.98V 1.71V ~ 1.98V 1.75V ~ 3.6V 1.7V ~ 3.6V 1.8V 1.8V ~ 3.6V 1.9V ~ 2.1V 10.8V ~ 13.2V 10V ~ 30V 11.8V ~ 12.2V 12V 12V ~ 24V 12V ~ 30V 12V ~ 36V 12VAC/DC ~ 24VAC/DC 15V ~ 30V 15VAC ~ 24VAC, 18VDC ~ 30VDC 16VAC ~ 28VAC, 16VDC ~ 35VDC 17.5V ~ 30V 18 VAC ~ 30VAC RMS, 18 VDC ~ 42 VDC 18 VAC ~ 32VAC RMS, 18 VDC ~ 42 VDC 18V ~ 30V 18V ~ 40V 18VAC ~ 30VAC, 18VDC ~ 42VDC 19.2V ~ 28.8V 2.4V ~ 2.6V 2.4V ~ 5.5V 2.5V 2.5V ~ 5V 2.6V ~ 3.6V 2.7V ~ 3.3V 2.7V ~ 5.5V 2.7V ~ 5V 2.7V ~ 8V 2.9V ~ 3.1V 20V ~ 28V 22.8V ~ 25.2V 23.5V ~ 24.5V 23.8V ~ 24.2V 24V 24VAC, 10.5VDC ~ 40VDC 24VAC, 16.5VDC ~ 40VDC 24VAC/DC 2V 2V ~ 3.45V 2V ~ 3.6V 2V ~ 3.8V 3.05V ~ 5.5V 3.135V ~ 3.465V 3.15V ~ 3.45V 3.15V ~ 5.5V 3.1V ~ 3.5V 3.25V ~ 5.5V 3.2V 3.2V ~ 3.55V 3.2V ~ 3.5V 3.2V ~ 3.6V 3.2V ~ 5.25V 3.2V ~ 5.5V 3.2V ~ 5V 3.3V 3.3V ~ 5.5V 3.3V ~ 5V 3.5V 3.6V 3.6V ~ 10V 32V 3V 3V ~ 15V 3V ~ 3.6V 3V ~ 3.6V, 10.8V ~ 13.2V 3V ~ 4.25V 3V ~ 4.2V 3V ~ 5V 3V, 5V 4.15V ~ 4.35V 4.2V 4.35V 4.45V ~ 5.5V 4.5 ~ 5.5V 4.5V 4.5V ~ 12V 4.5V ~ 14V 4.5V ~ 5.25V 4.5V ~ 5.5V 4.75 ~ 5.25V 4.75V ~ 12V 4.75V ~ 5.25V 4.75V ~ 5.5V 4.8V ~ 5.2V 4.9V ~ 5.1V 4V 4V ~ 24V 5mV 5V 5V ~ 12V 5V ~ 14V 5V ~ 16V 5VDC 6.5V ~ 12V 6.5V ~ 15V 6V 8V ~ 28V 8V ~ 35V 9V ~ 18V 9V ~ 24V 9V ~ 30V	- 1.5mA 100mA 100µA 10mA 10µA 110mA 11mA 120mA 125mA 12mA 13.9mA 13mA 14.6mA 150mA 15mA 15µA 160mA 165mA 175mA 18mA 19mA 1A 1mA 1µA/30µA 1µA/34µA 1µA/34µA, 125mA 2.6mA 2.7mA 2.8mA 200mA 20mA 22.6mA 22mA 23µA 250mA 25mA 26mA 27mA 28mA 29mA 2A 300mA 300µA 30mA 32mA 330mA 335mA 33mA 350mA 35mA 36mA 38mA 39mA 3mA 4 ~ 20mA 40mA 43.5mA 43mA 45mA 45µA 47mA 48mA 49mA 4mA 500mA 50mA 55mA 57mA 5mA 6.1mA 600mA 600µA 60mA 65µA 7.4mA 73.5mA 750mA 75mA 7mA 800µA, 6.1mA 80mA 8mA 90mA

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Photo	Mfr. Part #	Availability	Price	Quantity	Datasheet	RoHs	Series	Packaging	Product Status	Type	Oxygen Range	Accuracy	Output	Operating Temperature	Voltage - Supply	Current - Supply
	SGX-7SO2 SENSOR SULFUR DIOXIDE CUR OUT Amphenol SGX Sensortech	3,260	-	RFQ	Datasheet		7	Bulk	Active	Sulfur Dioxide (SO2)	800 mbar ~ 1200 mbar	-	Current	-30°C ~ 50°C	-	100µA
	VQ23TB SENSOR HYDROCARBONS VOLTAGE OUT Amphenol SGX Sensortech	5,788	-	RFQ	Datasheet		VQ20	Bulk	Active	Hydrocarbons	-	-	Voltage	-	2.4V ~ 2.6V	335mA
	SGX-7ETO SENSOR ETO CURRENT OUTPUT Amphenol SGX Sensortech	4,155	-	RFQ	Datasheet		7	Bulk	Active	Ethylene Oxide (C2H4O)	800 mbar ~ 1200 mbar	-	Current	-20°C ~ 50°C	-	300µA
	SGX-4H2-50K SENSOR ELECTROCHEMICAL HYDROGEN Amphenol SGX Sensortech	4,593	-	RFQ	-		-	Bulk	Active	-	-	-	-	-	-	-
	SGX-7NO2 SENSOR NITROGEN DIOXIDE CUR OUT Amphenol SGX Sensortech	3,732	-	RFQ	Datasheet		7	Bulk	Active	Nitrogen Dioxide (NO2)	800 mbar ~ 1200 mbar	-	Current	-30°C ~ 50°C	-	300µA
	SGX-7CL2 SENSOR CHLORINE CURRENT OUTPUT Amphenol SGX Sensortech	4,881	-	RFQ	Datasheet		7	Bulk	Active	Chlorine (CI2)	800 mbar ~ 1200 mbar	-	Current	-20°C ~ 50°C	-	300µA
	SGX-7NH3-100 SENSOR AMMONIA CURRENT OUTPUT Amphenol SGX Sensortech	4,208	-	RFQ	Datasheet		7	Bulk	Active	Ammonia (NH3)	800 mbar ~ 1200 mbar	-	Current	-40°C ~ 50°C	-	300µA
	SGX-7NO-100 SENSOR NITRIC OXIDE CURRENT OUT Amphenol SGX Sensortech	3,396	-	RFQ	Datasheet		7	Bulk	Active	Nitric Oxide (NO)	800 mbar ~ 1200 mbar	-	Current	-30°C ~ 50°C	-	300µA
	SGX-7NH3-1000 SENSOR AMMONIA CURRENT OUTPUT Amphenol SGX Sensortech	4,359	-	RFQ	Datasheet		7	Bulk	Active	Ammonia (NH3)	800 mbar ~ 1200 mbar	-	Current	-40°C ~ 50°C	-	300µA
	VQ21B SENSOR METHANE VOLT OUTPUT PAIR Amphenol SGX Sensortech	5,606	-	RFQ	Datasheet		VQ20	Bulk	Active	Methane	-	-	Voltage	-	1.9V ~ 2.1V	300mA

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