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Red digital panel meter with 4-digit LED display 14.2mm character height

Autonics Corp

Autonics Corp MT4W-DV-48 Digital Panel Meter NPN 0-500V DC 100-240VAC 50/60Hz 14.2mm LED electrician tool

SKU CH-AQ17-SGMXC MPN MT4W-DV-48

Measures DC voltage from 0-500 V across eight ranges, shows four red digits 14.2 mm high on an LED panel, and runs on 100-240 VAC 50/60 Hz power

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Clear readings from 14.2 mm high red LED digits
  • Wide DC voltage range from 0 to 500 V in eight selectable spans
  • Universal AC power input 100 to 240 V at 50 or 60 Hz
  • NPN open-collector output for direct PLC or controller interfacing
  • Four-digit display covers -1999 to 9999 for detailed measurement resolution

Purpose-built panel meter

The Autonics MT4W-DV-48 is a digital panel meter designed for electricians and technicians who need to monitor DC voltage directly on a control panel or equipment enclosure. It accepts a wide range of DC inputs from 0-50mV up to 0-500V, making it suitable for diverse industrial and automation tasks. The unit operates on a universal 100-240VAC power supply at 50/60Hz for global compatibility.

Replaces analogue dials

This meter upgrades legacy analogue indicators by providing a precise 4-digit 7-segment LED readout with a 14.2mm character height for clear visibility at a distance. The switch is worthwhile when an application demands a display range of -1999 to 9999 counts and NPN output for direct integration with PLCs or data loggers. It eliminates parallax error and supports multiple input scales without hardware changes.

Limits of the LED interface

The fixed 4-digit resolution caps the maximum reading at 9999, so voltages above the selected range will over-range rather than show higher values. The LED display requires continuous mains power and does not retain readings during outages. NPN open-collector output suits sinking logic circuits but cannot drive high-current loads directly. The meter is intended for panel mounting only and is not a handheld multimeter.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $79.99
Cheaper than about 61% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameAutonics
Model nameMT4 W-DV-48
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What panel cut-out size does the 48 mm MT4W-DV-48 require?

The meter fits a standard 48 mm square panel cut-out for flush mounting.

Which terminals must be wired for the 100-240 VAC supply and the NPN output?

Connect live and neutral to the AC power terminals; wire the NPN output to the load with the correct polarity.

When should the red 14.2 mm LED display be replaced?

Replace the display when segments become dim or unreadable after extended continuous operation.

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