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2 3/8 inch wide tread set
U-061-000

2 3/8 inch wide matched treads with an approximate 12mm pitch.

$259.00  $229.00
2 Ready to Ship!
Tamiya Universal Plate Set
TAM-036-000

The Universal Plates can be used in many projects. Set includes 2 160X60mm universal plates, 4 shaft mounts, 4 angle brackets and 18 rivet sets. This set can be used as frame for various constructions. 3mm holes are spaced 5mm apart.

$8.75
14 Ready to Ship!
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
8 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
10 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
9 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
46 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
6 Ready to Ship!
Gas sensors makes it possible to measure concentrations of gasses such as alcohol, methane, propane, butane, and carbon monoxide.
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

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New Tactical Robot Website!

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!

New Items
4WD WiFi Controlled Mobile Robot with PTZ Dome Camera - IG42
TP-600-156

This is our IG42 motor WiFi robot kit programmed and fully assembled. The robot is 4WD and is controlled from a PC using a WiFi connection. The robot has an IP dome camera with a Pan/Tilt/Zoom system.

$3,795.40
Built to Order
2-5 Weeks
HD2 Pair of Molded Spliceless Tracks and Wheel Set - Generation 4
TD-123-002

This is a pair of All Terrain reinforced 4 inch wide tracks with 4 wheels for the HD2 Treaded Robot. These are the generation 4 design. They have 4 ply mesh reinforcement, molded rubber with no splice. Custom lengths can be ordered.

$1,894.00
Built to Order
2-6 Weeks
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