... / relay output, 2.RS485/Modbus 3. CE certification The PMAC615 digital laser panel line meter are suit for 220V (L-N)/ ... switchboard, energy management system, and power quality analysis etc.PMAC615 Digital Amp Meter Feature:*Combination of remote signaling, remote control, ... , or 80~300VDC*Programmable CT (1 ~ 9,999)*Optional digital input, relay alarm output*Simulate OLED display, high definition and ...