The **Trumeter APM-VOLT-APO 4-Digit Digital Panel Meter** measures AC and DC voltage up to 600V with 1% accuracy, making it suited to monitoring mains voltage in control panels, power supplies and machinery.

**Overview**

The APM-VOLT-APO is a fully user-configurable digital panel meter designed for voltage measurement in industrial and control environments. It automatically detects AC and DC voltage inputs and combines a 4-digit LCD with a 40-segment bar graph to present readings in both digital and bar-graph form. The large, high-contrast, anti-glare screen offers a wide viewing angle for easy reading.

**Key Features**

* Measures AC and DC voltage inputs up to 600V with 1% accuracy
* 4-digit LCD with dynamic 40-segment bar graph
* Colour-adjustable backlight in green, red or white
* Dedicated starburst display area for custom messages and alarm information
* Positive display mode with black figures on a coloured background
* Up to 10 independent alarm setpoints with digital output delay
* Two independent outputs, configurable as digital signals or a 4-20mA current loop

**Configuration**

Using the free APM configuration software, users can set the measurement scale and range, including min-max, offset and gain, centre zero, or 20-point non-linear scaling. The requirements for the dynamic colour-changing backlight can also be defined.

**Connectivity**

When paired with the optional Trumeter IoT Gateway, the meter can connect to the Trumeter Cloud platform for remote monitoring, historical data recording and online alarm alerts by email or optional SMS notifications. This makes it suitable for Industrial Internet of Things (IIoT) applications.

**Dimensions and Weight**

* Width: 3.3
* Depth: 1.5
* Height: 4.3
* Weight: 185 g

Choose the Trumeter APM-VOLT-APO when you need a configurable 4-digit digital panel meter for voltage monitoring in industrial and control applications.