MR513 Hot-wire Gas Sensor

  • • Detection Gas: C2H5OH, Alcohol
  • • Detection Range: 0~500ppm
  • • Application: Portable alcohol detector and automotive ignition control system for domestic, industrial spot

We're here to help: Easy ways to get the answers you need.

  • Principle Introduction
Principle Introduction:
Winsen Electronics produces and provides alcohol detection sensor, C2H5OH sensor, MR513.
MR513 type gas sensor detect the gas concentration through resistance variation of platinum loop, which is based on the principle of the gas absorbed on the surface of metal oxide semiconductor, lead to the heat exchange and electricity exchange variation. It consists of detecting element and compensating element, which are the two legs of electric bridge. When exposing to the combustible gas, the resistance of detecting element reduces and the voltage variation of bridge output increase in direct proportion according to gas concentration. The compensating element performs for the reference and temperature compensation functions.
Applications :
Portable alcohol detector and automotive ignition control system for domestic, industrial spot.
Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.

Model MR513
Type Hot-wire
Standard Encapsulation Plastic Encapsulation
Working voltage(V)
Working current(mA) ≤100
Sensitivity(mV) ≥60(ethanol 100ppm)
Linearity(%) 0~5
Response time (90%) ≤20
Resume time (90%) ≤40
Using environment -20-+50℃ under 95%RH
Storage environment -20—+70℃ under 70%RH
Dimension(mm) Φ12mm×10mm
Reference Circuit :

Please fill in your procurement needs and contact information