Skip to product information
1 of 1


MG811 Carbon Dioxide Sensor

MG811 Carbon Dioxide Sensor

Regular price $44.00 USD
Regular price $48.00 USD Sale price $44.00 USD
Sale Sold out
Tax included.

This sensor module has an MG-811 ( MG - 811 / MG 811) on-board as the sensor component. There is an on-board signal conditioning circuit for amplifying output signal and an on-board heating circuit for heating the sensor. The MG-811 is highly sensitive to CO2 and less sensitive to alcohol and CO. It could be used in air quality control, ferment process, in-door air monitoring application. The output voltage of the module falls as the concentration of the CO2 increases.


  • Operating Voltage: 5V
  • Dual signal output (analog output and TTL) Flat output
  • TTL output valid signal is low
  • One digital output
  • Output: 0-2V
  • High sensitivity and good selectivity to carbon dioxide
  • Main Chip: LM393

View full details