AURORA, Ill.--(BUSINESS WIRE)--Mitutoyo America Corporation is pleased to announce the release of new EJ Counters and LG100 Series Linear Gages to its expansive sensor lineup of metrology products. EJ ...

Hello everyone! Today I’m going to discuss a cheap type of useful digital rotation per minute counter (Digital RPM Counter). The 4-Digit LED Display RPM comes with a magnetic proximity sensor switch.