starrett 722 caliper battery type?

[PixMan]

I have Starrett digital electronic calipers No.721 6" and No.723 9" digital electronic depth gauge No.753, and digital electronic micrometer. Only the depth gauge and 9" caliper are working. The micrometer can be fixed by Starrett (for the second time in two years), but I haven't found time to bring it up to them. The 6" caliper is deemed dead and cannot be saved, according to Starrett. It's a paperweight, and the reason that I've started the move to all Mitutoyo for digital electronic measuring tools.



I've had two of the Mitutoyo 6" Absolute digtial electronic calipers for years. One I gave to my dad some 8 yeears ago, and it's still on the same batteries. I gave it to him because the scale cover started peeling up at the solid jaw end, then bought myself a new one. Now my new one has the same problem, and they both still work as good as the day I got them. I've since added Mitutoyo 293-348 0-1" (friction thimble) and 293-345 (ratchet thimble) 1-2" digital electronic micrometers to replace the Starrett when they fail. I don't even bother picking up the Starett micrometers lately.




I got the 0-1" off a guy in Vermont from a Craigslist ad for $100. The 1-2" was a better deal for $65 on eBay. With some 11 micrometers just in the 0-1" range I shouldn't want for micrometers, but I still do. I just really want them to work when I pick them up!