The PowerLogic PM8143 is an ION meter designed for DIN rail in low and medium voltage applications, as well as for AC/DC control voltage. It has been developed to ensure the availability and efficiency of your energy-critical systems. With the modular, flexible, and powerful ION technology, individual applications can be created for each meter. It features high accuracy, multiple communication ports, a web-based user interface, and a graphical color display. Certified by independent laboratories for an accuracy class of 0.2S for active energy. Cybersecurity features include secure protocols, logging of security events, and Syslog logging. There is the option to enable/disable communication ports and support for 50 configurable user accounts for access management. It has 64 MB of memory to support up to 10 data logs, 50+ customizable alarms, waveform capture with up to 128 samples/cycle, and 1/2-cycle RMS logging. The memory can also be used for custom web pages, Min/Max logs, energy trends, and operating hours. Event timestamps are accurate to +/-1ms using time synchronization. Time synchronization methods include PTP, NTP, IRIG-B, GPS ASCII, and network time setting functions. There are 3 digital inputs and 1 digital output, as well as the option to add up to 4 expansion modules. The input/output expansion modules include 2 relays and 6 digital inputs or 2 analog outputs and 4 analog inputs. Extensive control voltage range of 90-415 VAC / 110-415 VDC. Operating environment from -25 to +70°C, humidity from 5% to 95%, and operating altitude up to 3000 m.