... instruments for R&D,Website:http://www.acsoon-power.com,design production testing/evaluation,and QA verification.In addition, ... display shows Vrms, Irms, Ipeak,frequency, power factor (PF), apparent power, true power, and elapsed output time.It integrates with ... and current limit☆ LCD to monitor voltage, current, frequency, power and power factor☆ Built- in RS232, RS485, communication port, ...