From another topic, it’s probably better placed here
What I neglected to test was a MEASURED output of the power, But luckily there is a tool for this!
I didn’t try without the repeater sticker, because the power output looked very much like a cellphone if not worse.
I have the Midwest gadgets Field meter V1.0 (which is awesome) but it can’t read cell phone outputs.
I still love this photo, it is one of the little hidden “easter eggs” / funny quips on the Midwest Gadgets website. (go check it out, and see what you can find https://www.midwestgadgets.org/)
Unfortunately, but not unexpected, it can’t read this rapid low power duty cycle of this door lock.
However, the NEW Midwest gadgets Field meter Pro (which has the analogue meter also) could almost certainly read it 
I did my first test straight over the repeater sticker, Surprisingly, I couldn’t get a read, which is odd, as the sticker does a great job of making this lock usable…
I tried again with a Hammy Field detector to see what was going on
Still no reading, I’m a bit confused at this point as I have used the Midwest gadgets Field meter a number of times on various readers and it has worked great.
I think this is more of an issue with the lock than the meter, But, I guess what I am saying is, If you are looking at getting a Midwest gadgets Field meter, it might be worth spending the extra $20 to get the Midwest gadgets Field meter Pro