Buzzing when using ohm reader.

[ihrmaniac97]

Hi, so just recently i got a coilmaster build kit along with my csmnt rda. I did a single coil build on it before just to make sure I can make good coils before I decided to try dual. So today, I do a dual coil build, everything heats evenly, only issue is there is a buzzing sound when I fire on the ohm meter. With my single coil build I was listening to music so I didn't hear it at all the first time I built doing my single coil. Is this a problem? Also, my ohms jump slightly when the coils are bright orange from 0.27 to 0.29, but once they're cooled it goes back to 0.27. I'm fairly new, been doing this only since tuesday, so have a couple things I wanted to ask before I throw it on my mod and wick. If it helps any, I am using 23 gauge nichrome.