Multimeter Comparison Guide

Comparison Summary

The Fluke 115 and Fluke 77-4 (also written as 77-IV) are both True-RMS Multimeters with large 3-1/2 digit / 6,000 count displays featuring bright backlights. Each meter is capable of measuring resistance, continuity, capacitance, and frequency, although neither meter can measure temperature. The 77-4 can measure AC/DC volts and current up to 1000V and 10A - while the 115 can also measure AC and DC, it measures up to 600V and 20A.

The 77-4 features better basic DC measurement accuracy than the 115 at 0.3% - the 115 is accurate to 0.5%. Both meters feature diode test capability, a bar graph function, min/max recording, and display hold functions.

The 77-4 is safety rated to both CAT III 1000V and CAT IV 600V while the 115 is only rated to CAT III 600V. That said, the 115 features an ingress protection rating of IP42 against dust and water ingress while the 77-4 has no ingress protection rating. The warranty on the 115 is also only 3 years while the 77-4 has a lifetime warranty.

Want to know more? Check out the tables below for complete specifications or give us a call at 877-571-7901. We’re happy to answer any questions you may have.