Is it possible to check voltage using the same type of meter as dana a? i have a variable voltage box mod so im trying to read the voltage output of the box. thanks in advance guys!
You can use the multimeter to check the unloaded voltage of the battery/mod yes. Just set the meter to the DC Volts setting (marked in the photo I linked). Put the black lead against the outer screw threads and the read lead to the center post and activate the mod.
*Note* Be careful you don't accidentally touch the leads together or you will short out the battery. Depending on the protections of the mod and/or batteries, extremely bad things can happen.
It's also worth mentioning that this will only work for the unloaded voltage. The voltage will drop considerably when a load (atty/carto) is connected unless you're talking about a regulated mod (Darwin, Provari etc.) The only way to check the loaded voltage would be to use an inline module between the mod and atty/carto that either reads the voltage or has leads that you can connect the multimeter to.