My 880PRS reads LOW by about .4-.6V, as compared to a DMM at the amps. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif
I have a feeling there's alot of variability in the accuracy of the 880's voltmeter, but no idea how to adjust it, or if it's even possible.