Does the MQ2 Gas Sensor have a fixed sensitivity? A. Yes B. No

does-the-mq2-gas-sensor-have-a-fixed-sensitivity-a-yes-b-no

Does the MQ2 Gas Sensor have a fixed sensitivity?

A. Yes

B. No

I have been asked this question in an interview for internship.

Asked question is from MQ2 Gas Sensor Module in section Interfacing of Sensors, Actuators, and Other Modules of Arduino

Correct choice is B. No

To explain I would say: The sensitivity of any sensor is its ability to detect the smallest degree of change in the measuring medium that generates an accurate output in the sensor’s terminals. The sensitivity of the MQ2 Gas Sensor is not fixed in itself and can be varied using a potentiometer.