Gas Sensors

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

-
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

-
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%