truAPM | Advanced Panel Meters by truAPM
truAPM | Advanced Panel Meters by truAPM

Volt Meter

The Trumeter APM Voltmeter is ideal for engineers, panel builders and designers wanting a more effective way of displaying and monitoring voltage.

Trumeter APM digital panel voltmeter

The APM panel mounted voltmeter auto-detects AC or DC measuring input and is capable of measuring up to 600V to an accuracy of 1%. No other panel voltmeter combines the instant recognition of an analogue coil/traditional panel meter with the precision and accuracy of digital panel voltmeters.

The programmable display features a 40-segment bar graph and large, easy-to-read starburst display for complete clarity. The unique LCD has color changing backlight and flashes to alert the operator, while the starburst display allows for annunciators, custom messages and/or alarm information where it may be required.


Unique digital display

Trumeter APM digital panel voltmeter

The APM voltmeter’s unique LCD display, with adjustable backlight brightness provides better visibility than any other product on the market. It is available in positive or negative screen options to suit different lighting conditions and the wide viewing angle makes readings visible from almost any perspective.

Trumeter APM Volt Meter positive and negative display

Digital panel voltmeter

The APM digital panel Voltmeter boasts a flexible voltage measuring input capable of measuring both AC and DC voltages. It is simple to install and easy to use, automatically detecting AC or DC signals and boasting input ranges of up to 600V.

The output models include two separate digital (open collector) or analogue (4-20mA) outputs. These outputs allow the user to interface the voltmeter with beacons, sounders, indicators, PLCs, remote monitors, interlocks, relays and more.

It is the ideal panel voltmeter for a range of applications, making potential voltage alerts unmissable and monitoring more effective.


Programmable panel meter

The programmable scale allows the user to set the bar graph to their own specifications by entering minimum and maximum values. Centre zero, positive and negative scales, as well as customised set points and alerts are all user-programmable via the APM’s configurator software. Alternatively, the APM voltmeter also comes with 15 built-in configurations for use straight out of the box.


Part Numbers

APM-VOLT-APN APM Voltmeter, Positive LCD
APM-VOLT-APO APM Voltmeter, Positive LCD with Outputs
APM-VOLT-ANN APM Voltmeter, Negative LCD
APM-VOLT-ANO APM Voltmeter, Negative LCD with Outputs

By request
APM-VOLT-APS APM Volt Meter, Positive LCD with Modbus
APM-VOLT-ANS APM Volt Meter, Negative LCD with Modbus



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Volt Meter Features

The next generation of Panel Meters.

Easy to Use.

Easy to Read.

Key Features of the Trumeter Volt Meter

Large Multi-format Display that Incorporates:

  • 40 segment bar graph display
  • Large 4 digit display
  • Separate Starburst display area for annunciators, custom messages and alarm information
  • Dynamic backlight color


  • User adjustable backlight brightness and color
  • Large display
  • Wide viewing angle (both horizontal and vertical)
  • Custom annunciators


  • Scale (offset and gain) and Range (min and max)
  • Custom annunciators
  • User selectable backlight color and intensity
  • Two independent alarm set-points
  • Two independent outputs (output models only)
  • 4-20mA analogue monitor output (output models only)

Panel cutout: 68mm x 68mm [2.68” x 2.68”] as per DIN43700/IEC61554

Easy to set-up software

Just plug into any free USB port on your PC.
Run the freely available APM Configurator and you’re off.