Murata Power Solutions' new DMR20 Series 'nanoMeters' are the first digital panel meters designed specifically for mounting in industry standard 30.5mm / 1.2 inch round panel cutouts. A rugged, one-piece polycarbonate housing, combined with an EPDM rubber gasket and hex nut, provides excellent resistance to both shock and vibration, as well as moisture ingress protection to IP67/NEMA 6 levels.

The initial product releases are two, self-powered, 2-wire voltmeters. The DMR20-10-DCM is an auto-ranging DC voltmeter with a measurement range of 6 to 75Vdc. The DMR20-1-ACV is a self-powered, true-rms responding, AC voltmeter with a measurement range of 85 to 264Vac (50-60Hz). Both models feature bright, easy-to-read LED displays and ultra-low power consumption. Panel knockout punches and tooling are also available.

DC Voltage Monitor

2-Wire, Self-Powered, Auto-Ranging

DMR20-10-DCM-R-C Buy Now
6-75Vdc Digital Meter with Red LEDs Datasheet Button

AC Line-Voltage Monitor

Self-Powered, 85-264Vac, LED Display Line Monitor

DMR20-1-ACV-R-C Buy Now
85-264Vac Digital Meter w/Red LEDs Datasheet Button

Tooling for the nanoMeter Family

  Part Number Description Buy Now
DMR20-1-KP DMR20-1-KP 1.2" (30.5mm) Round Knockout Punch (no keying notch) Buy Now
DMR20-2-KP DMR20-2-KP 1.2" (30.5mm) Round Knockout Punch (with four keying notches) Buy Now
DMR20-3-KP DMR20-3-KP 1/8" and 3/16" (3.2 and 4.7mm) Key-Notch Nibbler Tool

Buy Now
  • Four-digit LED display with over-voltage indication
  • LED display is 0.3" high, allowing these meters to be easily read from distances of 3 meters, or about 10 feet
  • Industry-standard mounting configuration commonly referred to as an "oil-tight" cut-out 30.5 mm in diameter;  rugged polycarbonate case that provides resistance to moisture, dust, and shock
  • Rubber gasket achieves moisture ingress protection rating to IP67 and NEMA 6 levels
  • Operates over the industrial temperature range of  -25 to +60 degrees Celsius
  • Factory calibrated
  • Screw terminal connections simplify installation
  • Internal self-resetting fuses provide long-term reliability
  • Self-powered  means no separate power supply is required to operate the meter; they can be used as digital replacements for analog meters
  • Industrial / Commercial
  • Test & Measurement
  • Alternative Energy / Backup Power
  • Information Technology
  • Marine and Recreational Vehicles
  • Inverters & Generators
  • Battery Chargers
  • Power Distribution Units
  • Test Stands
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