【Multi-Parameter Measurement】Enter the Smart (Auto) mode by default, the digital multimeter automatically identifies and measures AC/DC Voltage, Resistance, and Continuity. It also tests Capacitance, Diode, Frequency, and Live Wire. 【Phase Sequence 】ST120 stands out with its unique phase sequence detection. When turn on the “PA” mode, the operator can detect whether the phase sequence is clockwise or anti-clockwise. 【Easy to Use】Switch measurement mode with button “Func” and hold data with button “H” . Backlight LCD screen ensures reading to be clearly seen in either dark or bright areas. The flashlight below the red probe helps you to work without concerns under dim light. 【Wide Application】 Industrial electrical safety measurements, household electric problems, vehicle and circuit inspection. 【 Customer Service】Lifelong technical support is guaranteed. Please don’t hesitate to contact us if there are any questions with our ST120 pen-type multimeter.