Instrument comprised of one regulated power supply 0-10V (50mA). Two Digital meters 20V & 20mA for voltage & current measurements are mounted on the front panel. Two Zener diodes 6.8V & 8.2V are mounted on the front panel. Voltage controlled through potentiometer. Fuse for short circuit protection. Supplied with required quantity of 4mm Banana Plug leads & instruction manual.