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DT-SENSE Carbon Dioxide Sensor is a gas sensor module to measure the carbon dioxe gas in the air. This module based on MG-811 which can be detect the carbon dioxed gas in range 350 - 10000 ppm. This module is well suited for air quality control application.

DT-SENSE Carbon Dioxide Sensor is designed using SMD component so this module has a compact size. This module provide two option for interface : 38400 bps UART TTL or I2C. Moreover, this module can be cascade up to eight modules by I2C interface.

Dimension : 5,6 cm (L) x 4 cm (W) x 3,4 cm (H)

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Specifications :

  • 5VDC input votlage.
  • Gas target : carbon dioxide.
  • Range detection : 350 - 10000 ppm
  • Interface
    • UART TTL : 38400 bps, 8-bit data, 1-bit stop, no parity, no flow control.
    • I2C : can be cascade up to eight modules.
  • Uses 10-bit ADC to converting data from analog to digital.
  • Digital data output range : 0 - 1023
  • Variable resisto to adjust the threshold value manually.
  • Jumper configuration to set-up the I2C resistor pull-up, load resistor value, and threshold.
  • 2 mode operation for stand alone feature : hysterisis ow window.
  • TTL/CMOS I/O compatible.
  • Two LED indicator.
  • Comes with EMI filter chip.
  • Fully compatible with another gas sensor, such as :
    • MQ-3 (alcohol).
    • MQ-4 (metana).
    • MQ-6 (LPG).
    • MQ-7 (carbon monoxide).
    • MQ-135 (air quality).
    • MG-811 (carbon dioxide).


Includes :

  • 1x DT-SENSE Carbon Dioxide Sensor.

Application Note Table

Article File Desc date
[AN224] Antarmuka DT-Sense Gas Sensor menggunakan Arduino™ UNO

Interfacing between DT-Sense Gas Sensor and Arduino™ UNO, with simple testing program using i2cmaster Library