APS-9000 Features True RMS MeterWide Output Voltage / Frequency Variable RangeSave/Recall 4 Sets of Voltage/Frequency MemoryOver Current Protection and Over Temperature ProtectionStable and Low-Distortion Output WaveformsSoftware Calibration to Ensure AccuracyPanel-Lock Function to Prevent Operation ErrorFrequency,Volt,Amp,Watt and Power Factor Display Datasheets APS-9000 Data Sheet Download