Thanks for the reply SC hope you are doin well bro..

I can actually just plug my unit into a socket in any room I want to test and it will give me digital readout. You must be talking about checking the calibration on my equiptment. That is a good idea SC. Will do.

My room is 930 sqft but that wouldn't matter too much if the room were sealed. The only difference would be when I recharge the room at lights on.