The Extech 382200 is a power supply which features an adjustable 30.0V/1.00A output and dual backlit LCD display and an accuracy of ±1.5% for Voltage and ±2% for current. This product also provides constant current or voltage; short circuit protection; low noise/ripple (<0.5mV/<3mA); and high load (< 0.01% + 2mV/< 0.2% + 3mA) and line (< 0.01% + 3mV/< 0.2% + 3mA) regulation. 115/230VAC, 50/60Hz.