The M4M 20 multifunction meter is a versatile device designed for engineers. It features 2 digital outputs, bluetooth and Modbus TCP/IP communication for seamless connectivity. The meter operates on an auxiliary supply of 48-240VAC/DC at 50/60Hz. With an accuracy class of 0.5S to IEC61557-12 and a degree of protection IP54, it ensures reliable and precise measurements. This meter offers multi-measurement capabilities, including currents, voltages, frequency, power factors, and timers. It supports metering for active energy, reactive energy, apparent energy, and 4 quadrants energy (Import/Export). Additionally, it provides complete monitoring and power quality analysis through data recording and logs. The M4M 20 features a graphic colour display with a user-friendly interface consisting of 5 pushbutton keys. Its panel mount design makes it easy to install in any compatible system with dimensions of 96x96mm. Overall, the M4M 20 multifunction meter is a powerful tool that combines accurate measurements with advanced connectivity options for efficient monitoring and analysis in various engineering applications.