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ATR Wheel and Shaft Set Pair 8mm bore - 10 inch pneumatic
TD-066-008

These large pneumatic ATR wheels are 10" in diameter. They come as pair and have steel 1/2" diameter shafts and bearings for our IG42 standard ATRs with a 8mm bore. Formally TD-066-002.

$89.95
Built to Order
1-3 days
NEW Prebuilt 4WD IG42 - SB Custom Length Assembled Robot with 10 inch Tires - SOLD
TP-500-082

This RTR robot uses custom length sides and 10 inch tires. We have included everything to make it ready to run including batteries, controllers, chargers, etc. It has never been used.

$1,209.23  $1,139.00
Out of Stock. Contact us for availability.
SuperDroid Robots Gas Sensors
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Electrical/Controls  >  Sensors  >  Gas Sensors

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. Visit our Sensor Support page for more information about the types of sensors we carry and the differences between them.


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
9 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
6 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
40 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
9 Ready to Ship!
Gas sensors makes it possible to measure concentrations of gasses such as alcohol, methane, propane, butane, and carbon monoxide.
SDR Tactical Robots

Looking for our Tactical Robots? We've created a new, dedicated website to better serve our customers. Please click the image below to visit the new SDRTactical.com!

Custom Robot Request

We specialize in designing and fabricating custom robots and other electro-mechanical devices.

You can also get a quote for custom mechanical, software, and electronics engineering services. We can also do your custom CNC work, general fabrication, and welding.

1-919-557-9162

New Items
SPST 24V 100A Solenoid Switch - Insulated Continuous
TE-244-024

This 24 volt insulated continuous solenoid switch features a single pole single throw actuation style and is advantageous from using relays because it generates a larger output while allowing a low input.

$35.12
4 Ready to Ship!
High-Speed Steel Drill Bit 1/8 inch Extended-Reach
T-023-108

This is a 1/8 inch drill bit - extended reach. We use this for drilling a hole that will take a #4 machine screw. A long overall length allows you to reach deep, inaccessible spots.

$5.18
10 Ready to Ship!
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