... , adjust the zoom, aperture, set and call preset position Test UTP cable connection status and display in the screen, scan RS485 ... cable, measuring the connecting status; display the sequence of connection and the NO. of the LAN cable.Built in Lithium Ion ... test AD/DC Voltage, AC/DC Current, Resistance, Continuity, Capacitance and Diode test, Auto / Manual Range, Data hold, Relative measuring.Size: ...