[Shane] bought a multimeter with the idea of using its serial output as a source for data logging. A multimeter with a serial port is a blessing, but it’s still RS-232 with bipolar voltage levels.

[Craig] cracked open a multimeter to unlock RS232 serial communications that can be used for data logging. There’s a couple of things that make this possible. First of all, the multimeter’s processor ...

The Fluke 289 True-rms Industrial Logging Multimeter and FlukeView Forms combination kit lets users turn logged data into graphs, tables, and reports. The Fluke 289 logging function comes with ...