Auto-Ranging True RMS Digital Multimeter with RS232 Connection (HH2205E)LED audio warning if test leads are not in proper jacks 3 3 4 Jumbo LCD display 4000 count with symbolic signs. Auto Ranging High Voltage test up to 1000V DC and 750V AC Transistor test Uses 2x 1. 5V AAA battery This meter can measure AC DC Voltage and Current, Resistance, Diode, Continuity Buzzer, Capacitance, Frequency, hFE and EF Function. LED sound warning if test leads are not in proper jacks 3 3 4 Jumbo LCD display 4000 count with symbolic