How to measure the power consumption of sensor ?

[Bobby_Huang]

Excuse me,I am the after graduate student of Taiwan.


I wonder to know that how to measure the power consumption of sensor like DHT11 or MQ-2.


Thank you for answering my question.


It's very mean to me.

[knut_ny]

Their datasheets will tell you:
If you dont believe the datasheets, you can measure the current (and voltage) to the sensor.
multiply the two reading

[Bobby_Huang]

Thanks for telling me the information.


It's very helpful.


Excuse me, I have another question.


Is that possible to detect and measure the power consumption of sensors and than transmit the data to
the arduino.


Sorry for asking so many questions.


But I really want to know the knowledge about the arduino and sensor.