... 1)Accuracy +-0.2%FS+1digit 2)AC/DC current or voltage 3)Modular output: Alarm, RS485 ... Strong Anti-JammingAdvanced SMT technology and Modular StructureCan select Relay alarm output: High, Low limit alarm(Option)Can ... digits, 7 segments LEDModular Output :Relay High Limit Alarm,220VAC/0.8A,NO: Relay High Limit Alarm,220VAC/0. ... , high-impendence ohmmeter DP4-RMS Intelligent Digital DC/AC Ammeter/Volmeter