The impression when the item arrived was a word of "deca". Well, as it is big, the meter is very easy to see. I was lost as a digital meter, but I chose mechanical type from the troublesome thing such as not being displayed when battery exchange / button press is not done. The error seems to be adjustable with the adjustment plug. One thing to be aware of is that you can not change it simply by removing the four screws when rotating the meter display. Remove the reset knob (pulling it off) It is necessary to remove the eight screws inside. Attention is necessary because it does not write in the manual.