* Bench top, portable, Li-ion BATTERY Power Supply. *DISPLAY: 4½ Digits 19999 Counts LED Display. *SOURCE MODE:- DC Voltage : 0 – 199.99mV | 1.999V | 19.999V, Accuracy : 0.05%± 3Dgts. DC Current : 0 – 199.99µA | 1.999mA |19.999mA Accuracy : 0.05%± 3Dgts. *MEASURE MODE :- DC voltage : 0-199.99m / 1.999 / 19.999V, Accuracy : ± 0.05%.  DC Current : 0 – 199.99u / 1.999m/19.999mA, Accuracy : ± 0.05%. *SOURCE MODE : mV / V or mA adjustable by means of "COARSE” & "FINE" Potentiometers in Source mode. *SOURCE / MEASURE : Mode Selectable by a Toggle switch with LED indication.