B&K Precision 2190DTCAL Digital Storage Oscilloscope, 1 GSa/s, 100 M Hz Bandwidth 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 32 automatic measurements 100 MHz bandwidth,1 GSa/s sample rate Large, 7" widescreen color display offers a significantly larger viewing area than typical economy oscilloscopes (5.7")