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The Gas Sensor MQ-7 is a highly sensitive module designed to detect the presence of carbon monoxide (CO) gas in the air. It features a semiconductor gas sensor based on tin dioxide (SnO2) technology and a built-in heating element. The MQ-7 sensor provides reliable and accurate detection of carbon monoxide gas, making it suitable for applications in gas leak alarms, safety systems, and environmental monitoring. With its fast response time and high sensitivity, the MQ-7 sensor module offers effective protection against carbon monoxide hazards.

      Gas Sensor MQ 7 CO Carbon Monoxide

      SKU: 139
      ₹160.00 Regular Price
      ₹130.00Sale Price
      • Specification

        • Gas Detection: Carbon monoxide (CO)
        • Sensing Element: Tin dioxide (SnO2) semiconductor gas sensor
        • Operating Voltage: Typically 5V DC
        • Heater Resistance: 31 Ω ± 3 Ω at room temperature
        • Load Resistance: Adjustable via potentiometer
        • Dimensions: Compact size, varies depending on the module


        • Power Supply: Connect the VCC pin of the module to the 5V pin of the microcontroller or power supply.
        • Ground: Connect the GND pin of the module to the ground (GND) pin of the microcontroller or power supply.
        • Analog Output: Connect the AOUT pin of the module to an analog input pin of the microcontroller or ADC (Analog-to-Digital Converter) module.
        • Load Resistance Adjustment: Adjust the potentiometer on the module to set the load resistance for optimal sensitivity.
        • Coding: Write the microcontroller code to read the analog gas detection values from the module and perform appropriate actions or display the readings.
        • Calibration: Calibrate the sensor according to the specific gas being detected (carbon monoxide) and the sensor's specifications (refer to the datasheet or documentation).
        • Testing: Expose the gas sensor to carbon monoxide gas and observe the readings or trigger actions based on the gas concentration.
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