B&K Precision 9130TCAL Triple-Output Programmable DC Power Supply, 30V DC, 3 Amp with a NIST-Traceable Calibration Certificate with Data Your unit is calibrated prior to shipment with a new NIST-traceable calibration Certificate with data The NIST calibration provides you assurance your instrument Meets manufacturers specifications. Your instrument is ready to Use day one meeting most quality system standards Third output supplies adjustable voltage up to 5VDC and current up to 3 amp Linear power supply unit provides a constant source of DC voltage and current for powering and testing electronic devices Two outputs supply adjustable voltage up to 30VDC and current up to 3 amp