This device is a universal meter for control panel installation with a size of 96 mm x 96 mm and a backlit LCD display with 128 x 128 pixels. The universal meter measures active energy according to accuracy class 0.5S according to IEC 62053-22 with a sampling rate of 64 samples per cycle. Can measure all three power and energy values such as active, apparent and reactive power as well as voltages, currents, frequency and power factor. Plus total harmonic distortion and individual harmonics up to the 31st order. The universal meter operates with either a mains frequency of 50Hz or 60Hz and accepts universal control voltages from 80 to 300 V between phase and neutral, AC or DC. The rated current for this meter is either 1 A or 5 A at the power input. It supports up to 13 different types of wiring schemes under single-phase, two-phase or three-phase configuration types. The measuring voltage range between phases is 35 to 480 VAC phase to phase at 45 to 65 Hz, while the range between phase and neutral is 20 to 277 V. It has an RS485 communication port with Modbus RTU protocol. The meter can be upgraded with optional I/O modules for pulse monitoring. These modules have either two channels each for digital inputs and outputs or analog inputs and outputs. This version can be configured for 23 different types of alarms stored in 40 registers. The product dimensions are as follows: width 96 mm, depth 54 mm, height 96 mm and product weight 300 g.