... Functions Automatic Measurement up to 250MS/s real time sample rate 3.7"TFT handheld ... Delay A→B Waveform math +,-,×,÷, Inverted Digital Multimeter Testing Voltage, Current, Resistance, Capacitance, Diode, Continuity ... 5VDC, 1500mA Battery: 6 hours Dimension 180mm x 113mm x 40mm Weight 645gUser interface: English/Chinese ................................................................................. ...