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

AC Mains Meter APM

The APM M2 Meter is an AC mains-powered panel meter that can be configured to measures amps, volts or frequency.

M2 AC Meter APM Features
A flexible and powerful panel meter that doesn’t need an additional power supply,the APM Mains Meter is ideal for end-users and OEM applications requiring an AC powered panel meter. As well as the unique display and programmable functionality, it is user-configurable to measure current, voltage or frequency through the configuration software.


User-Programmable Panel Meter

Using the APM software the meter can be configured to your requirements quickly and easily. The Mains Meter APM can be configured to measure:

Volts: auto-detects AC or DC measuring input, capable of measuring up to 600V to an accuracy of 1%.

Amps: measures up to 5A directly, or up to 10,000A in conjunction with a current transformer to an accuracy of 1%.

Frequency: has an input range of 2Hz-400Hz and measures to an accuracy of 0.5%.

The 40-segment bar graph scale can be customised along with the positive and negative and centre zero scales.

The dynamic backlight can be can also be configured to alert the user whenever a critical parameter is out of range and can be set to flash and/or change colour (or intensity) between red, green and white.
M2 AC Meter APM color changing backlight


M2 AC Mains Powered Panel Meter

The Mains Meter utilises 100-240VAC mains power. This has been accomplished without compromising the overall size of the unit, which retains its 53mm [2.09”] depth, and makes it an ideal panel meter for applications where space is at a premium.

With two independent outputs – digital open collector and analog 4-20mA output – the panel meter can be used in conjunction with other systems making it ideal for a range of applications and OEM developments.


Unique LCD panel Display

The unique LCD display combines the advantages of traditional moving coil meters with the accuracy and features of the leading digital panel meters. The display is available in two versions – either positive or negative. The positive LCD has black digits and a bright background and is readable in bright sunlight with the backlight on or off. The negative LCD has bright digits and a black background. The display offers the highest contrast when used in-doors and digits are only readable when the backlight is on.
M2 AC Meter APM positive and negative display

Part Numbers

APM-M2-APO APM M2, 100-240VAC with positive LCD and outputs
APM-M2-ANO APM M2, 100-240VAC with negative LCD and outputs

By request
APM-M2-APS APM M2, 100-240VAC with positive LCD and outputs and Modbus
APM-M2-ANS APM M2, 100-240VAC with negative LCD and Modbus


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Multi Meter Features

The next generation of Panel Meters.

Easy to Use.

Easy to Read.

Key Features of the Multi Meter

Large Multi-format LCD Display that Incorporates:

  • 20 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
  • 4-20mA analogue monitor output

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.