Tim,
Hi. Just to make sure we answer you, did you try looking at the functionality and features of SAP Work Manager - Meter Management software? Most of our measuring is in that software.
http://service.sap.com/intguides<-- SAP Mobile <-- SAP Work Manager <-- Work Manager 6.3
You may also try to download the app (demo app) in the iOS App store or Google Play store to see if this meets your requirements (you may check the sample Work Manager Meter app).
You may also check out SAP Rounds.
If the downloadable app did not meet your requirements then it may need to be customized.
Best Regards,
SAP Mobile Support Team