Quote Originally Posted by GRHazelton View Post
Just be careful if you are considering an older used meter that you determine what sort of cell/battery it uses. For example, mercury cells were favored in the past for exposure meters, both hand held and in cameras because they maintained their voltage pretty constant throughout their life, unlike alkaline or silver oxide cells. However ... mercury cells can no longer be sold, at least legally. Some otherwise "legal" cells/batteries may be very difficult to find.
This is correct, but if you find a meter you like that has this problem, there often are adapters available (at a cost) to deal with it.