Need help converting brick board MQ-7 sensor to PPM values

[WillyLord]

@ESP

If you just want to do an alarm check, which only a rough threshold is needed, you could measure the voltage of corresponding environment, and use this value to judge.

This is a industrial level sensor, some calibration is needed to get precision.

Hi Esp,
thanks for your suggests, but I need to get the ppm values number because I’m going to interfacing my seeeduino board with pachube.com sharing website.

Regards.