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AnyVolt 3A Universal DC-DC Converter
TE-129-ADJ

The Dimension Engineering AnyVolt 3 Universal DC-DC Converter is an adjustable step up / step down 3A switching regulator. The output is adjustable from 3 to 24V.

$54.99
12 Ready to Ship!
Steel Roller Chain Sprocket for #35 Pitch Chain - 18 Teeth
TD-268-018

With it's wide hub and finished bore, this steel roller chain sprocket is ready to mount to a shaft.

$20.00
Special Order
2-4 Days
SuperDroid Robots Gas Sensors
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Electrical/Controls  >  Sensors  >  Gas Sensors
SuperDroid Robots

Gas Sensors

Want to build your own breathalyzer? This variety of semiconductor gas sensors makes it possible to measure concentrations of gasses such as alcohol, methane, propane, butane, and carbon monoxide.


The answers to the most common questions we get can be found on our support pages. For More Information: Sensor Support.


Looking for some sample code? Please visit us on GitHub.

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Pololu Carbon Monoxide & Flammable Gas Sensor MQ-9
This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 1,000 ppm and combustible gas from 100 to 10,000 ppm.
TS-056-MQ9
$5.95
7 Ready to Ship!
Pololu Carbon Monoxide Gas Sensor MQ-7
This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.
TS-056-MQ7
$4.95
8 Ready to Ship!
Pololu LPG / Isobutane / Propane Gas Sensor MQ-6
This semiconductor gas sensor detects the presence of LPG, isobutane, and propane at concentrations from 300 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.
TS-056-MQ6
$4.95
8 Ready to Ship!
Pololu Methane Gas Sensor MQ-4
This semiconductor gas sensor detects the presence of methane (CNG) gas at concentrations from 300 ppm to 10,000 ppm, a range suitable for detecting gas leaks.
TS-056-MQ4
$4.95
8 Ready to Ship!
Pololu Alcohol Gas Sensor MQ-3
This semiconductor gas sensor detects the presence of alcohol gas at concentrations from 0.04 mg/L to 4 mg/L, a range suitable for making a breathalyzer.
TS-056-MQ3
$4.49
10 Ready to Ship!
Pololu Flammable Gas & Smoke Sensor MQ-2
This semiconductor gas sensor detects the presence of combustible gas and smoke at concentrations from 300 to 10,000 ppm. The sensor's simple analog voltage interface requires only one analog input pin from your microcontroller.
TS-056-MQ2
$3.95
8 Ready to Ship!
Pololu MQ Gas Sensor Carrier
This carrier board is designed to work with any of the MQ-series "gas sensors".
TS-056-MQ0
$0.95
39 Ready to Ship!
Humidity Sensor Carrier HIH-4030
This is a carrier board for the HIH-4030 relative humidity (%RH) sensor from Honeywell outputs an analog voltage that varies nearly linearly with humidity.
TS-051-000
$16.95
8 Ready to Ship!
Gas sensors makes it possible to measure concentrations of gasses such as alcohol, methane, propane, butane, and carbon monoxide.
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New Items
New Prebuilt Tri-Wheel Vectoring Robot Kit  - IG32 Medium Duty SB
TP-500-148

This is a larger IG32 gear motor robot that utilizes three omni-wheels to vector it in any direction. By changing the speeds and directions of the motors the robot can drive in any direction without needing to turn.

$1,180.00  $1,125.00
1 Ready to Ship!
Steel D-Shaft Sprocket for #25 Pitch Chain - 10 Teeth
TD-199-010

These sprockets are custom designed by SuperDroid Robots to fit the 8mm D shaft on our IG42 motors. They are made from high quality steel and have a black-oxide coating.

$15.50
476 Ready to Ship!
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