The Triplett Model PS303 Single Output DC Power Supply has a 30V/3A output and can be used for bench testing and repair of circuit boards, vocational school/technical school/college level electronics classroom education, field service repair, and hobbyists. It provides Constant Voltage or Current operation with fine and coarse adjustment for both. Readings are displayed on dual 4-Digit LED displays. It features low ripple and noise, reverse polarity protection, short circuit and overload protection, and fused temperature protection with automatic recovery Includes banana to alligator test leads and AC power cord. 1 year warranty.

PS303-NIST Comes with Certificate of traceability to NIST standards 
Please add 3-5 days lead-time for the NIST calibration process