starrett 722 caliper battery type?

[stevec]

Mike, I have a Mitutoyo digital mic #293-705 and it eats it's SR44 batteries too. I've taken to removing the battery when not in use and in so doing it gets used less frequently. Must be a design flaw which requires battery power for the memory even if there's just zeros in the memory.
My first Mitutoyo digital caliper had an automatic shut down feature. If the caliper wasn't used within a certain period it turned itself off, batteries lasted forever.