Digital Multimeter BT-39D Auto Range Tester Ac/ Ac 6000 Counts True Rms Ncv Ohm Transistor Tester Features:1. AC/DC voltage, current, resistance, frequency, capacitance, temperature, battery test2. Test duty cycle3. Continuity buzzer and diode test4. Auto/manual range5. Relative ValueDescription:1. Overload protection: full range protection2. Data hold function3. Low battery display