You can see a more nuanced picture of your signal, overall level, and peak level by referencing both.
VU meters are most helpful in showing overall signal levels, and peak meters (akin to the channel meters in the Studio One Console) are most helpful in keeping track of peak signal levels. The VU Meter plug-in provides the best of both worlds for your signal metering needs: Analog-style VU meters (with clip indicators) and LED-segment-style peak meters. You can also FREE download Voxengo CRTIV Shumovick. Free Download PreSonus VU Meter full version standalone offline installer for Windows it is a VU meter plug-in best for any signal metering needs.