Scaler

noun

1. An electronic circuit that records the aggregate of a specific number of signals that occur too rapidly to be recorded individually.
2. One who scales fish; distinctively, a person in the act of scaling, or who makes a business of it: used specifically of the scaling of menhaden.
3. An instrument resembling a currycomb and usually made of tin, used for removing scales from fish.
4. An instrument used by dentists in removing tartar from the teeth.
5. One who scales or measures logs.