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HomeProductsSensorsEnviromental GebraBit MQ7
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GebraBit ZMOD4410

GebraBit MQ7

 

  • Module type: CO Gas module
  • Module Supply Voltage: 5.0 V
  • Output Type: Analog-Voltage/Digital-Logic
  • Detection Range: 10 to 10000 ppm
  • Package: GebraBit medium (36.29mm x 46.18mm)

 

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SKU: GB601EN Categories: Air Quality, Enviromental, Products, Sensors
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  • Description
  • Specifications
  • Documents
Description

OVERVIEW

Gebrabit MQ7 Semiconductor Carbon Monoxide measurement module.

GebraBit MQ7 module is a Low Power-Consumption CO2 Module.

GebraBit MQ7 module operate just with an input “5V” supply Voltage.

GebraBit MQ7 module amplifies MQ7 sensor output by an integrated op-amp circuit for better analysis and interpretation and provides it on the module “AO” pin. For reading CO data, just connect the analog “AO” pin to MCU ADC and go on.

Sensitivity can be adjusted by embedded potentiometer of the right side of the module.

The Gas intensity threshold is adjustable by an embedded potentiometer in the GebraBit MQ7 module, when the Gas intensity goes above, or below the threshold, the “DO” pin and the “Dout” LED status will be changed.

The Sensitive material of MQ-7 gas sensor is SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO when low temperature. The sensor’s conductivity is more higher along with the gas concentration rising. When high temperature, it cleans the other gases adsorbed under low temperature. MQ-7 gas sensor has high sensitity to Carbon Monoxide. The sensor could be used to detect different gases contains CO, it is with low cost and suitable for different application.

 

WARNING: FOR ACCURATE INFORMATION ABOUT ICs ABSOLUTE MAXIMUM RATINGS AND ITS PRECIOUS CHARACTERISTICS RANGES, USERS MUST CERTAINLY REFER TO ICs MANUFACTURE DATASHEET.

 

Key Features

  • On Board, ON/OFF LED indicator
  • On Board LED indicator for Digital Comparator Output
  • GEBRABIT Pin Compatible with GEBRABUS
  • GEBRABIT small package
  • It can be used as a daughter board of GEBRABIT MCU Modules
  • Featuring Castellated pad (Assembled as SMD Part)
  • Separatable screw parts to reduce the size of the board
Specifications
Part Number

GebraBit MQ7

Short Description

GebraBit MQ7 is a CO module, with Analog-Voltage/Digital-Logic output and 10 to 10000 ppm measurement range

Product Type

Module

Module Supply Voltage

5.0 V

Module Logic Voltage

Refer to Datasheet

Module Current Consumption

100 mA to 150 mA (Typ. 120 mA)

Output Type

Analog-Voltage/Digital-Logic

Detection Gas

CO

Detection Range

10 to 10000 ppm

Sensivity

Rs(in air)/Rs(100ppm CO)≥5

Package

GebraBit small (36.29mm x 32.72mm)

Brand

GebraBit

Documents

Documents Link

  • Schematic (.pdf)
  • Module Layout (.pdf)
  • MQ7 Datasheet
  • Wiki Link (Source Code and Tutorial)
DISCLAIMER: GEBRABIT PRODUCTS ARE INTENDED SOLELY FOR RESEARCH & DEVELOPMENT PURPOSES. GEBRABIT EXPLICITLY DECLARES IT HAS NO RESPONSIBILITY IF USERS UTILIZE THEM IN ALL OTHER SENSITIVE AND PRECISE APPLICATIONS THAT CAUSE FINANCIAL AND HUMAN LIFE DAMAGE.

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