LPG (Propane) Gas Sensor

  • 605-00009: LPG (Propane) Gas Sensor
In Stock: 73
Product ID 605-00009


The LPG Gas Sensor Module is designed to allow a microcontroller to determine when a preset propane gas level has been reached or exceeded.  Interfacing with the sensor module is done through a 4-pin SIP header and requires two I/O pins from the host microcontroller. The sensor module is mainly intended to provide a means of comparing propane sources and being able to set an alarm limit when the source becomes excessive.

Key Features:

  • Uses the MQ-5 LPG Gas Sensor
  • Easy SIP interface
  • Compatible with most microcontrollers

Application Ideas:

  • Safety Devices (harmful gas detection)
  • Environmental Monitoring

Precaution: Be aware that high concentrations of propane can be deadly. Always be careful to perform gas tests in well-ventilated areas. This LPG Gas Sensor Module in not designated for or approved for any application involving health or human safety. This LPG Gas Sensor Module is for experimental purposes only; Parallax Inc absolves itself of all liability and responsibility associated with the customer’s use of this LPG Sensor Module and is not responsible for any bodily injury, death, or property damage as a result of using this LPG Gas Sensor Module.


  • Voltage requirements: 5 VDC
  • Current requirements: ~175 mA
  • Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)
  • Dimensions: 1.50" H x 1.00" W x 1.00" D (38.1 mm H x 25.4 mm W x 25.4 mm D)
  • Operating temp range: 32 °F to 158 °F (0 °C to 70 °C)

Note: Parallax does not provide gas calibration data on the module and such data and alarm setting is the responsibility of the user to define. For information on user calibration please see the documentation.  

Downloads & Documentation

Download Details More Info
MQ-5 LPG Gas Sensor Datasheet - 53.78 KB | updated: 04 Oct 2012 - 2:36 pm
Gas Sensor Modules Product Documentation - 136.8 KB | updated: 07 Jan 2013 - 8:03 pm