True RMS Self-Powered AC Voltmeter Fits 30.5 mm / 1.20 Inch Round Panel Cutouts

摘要

Murata's Type DMR20-1-ACV "nanometer" self-powered four-digit bright LED voltmeter can measure the true RMS value of its input from 85 to 264 VAC to within 0.1 V resolution. Designed to be completely self-contained, the low cost two-wire voltmeter requires no additional components or connections apart from the AC voltage it is measuring. It is capable of accurately measuring quasi-sine AC source such as modified, modified 2-step and modified 3-step sine wave in addition to conventional sine, triangle and square wave inputs.