Great meters! Just as good as the later ones, IMO, and I enjoy the split scale, actually.
The problem is this: It takes TWO batteries. One is for the high scale, and one is for the low scale. ONE of the batteries is no longer made. I think it is the battery for the low scale, but cannot remember exactly.
As such, to use it, you must get around the battery issue. You can do this, using a variety of methods, however, the monetary value of the meters is LOW because of this. Do not pay a lot for one of them.