PRL is a precision high power resistance source with excellent characteristics of stability, temperature coefficient, and power coefficient. High dynamic ranges are available, starting as low as 0.5 Ω, and extending to as many as 3 decades.

Operation is both local using convenient direct-reading front panel thumbwheel switches, or remote with RS-232, or IEEE-488 or RS-485 interfaces.

AI's produces various kinds of Power Resistor unit which can be used for any AC or DC resistor load application. Those units are most commonly used for all laboratory, test, calibration, load banks, precision burn-in load and functional test applications.