Allen Industries service technicians and engineers offer professional Vitrek PA904AD power analyzer repair and calibration service. In fact, we offer repair and calibration services for many models from many manufacturers of test equipment. The Vitrek PA904 Series Power Analyzer with Four Ultra-Precision UT Channel Cards. Comes with: Power Cord, Operating Manual, and supplemental applications. Once your Vitrek PA904AD power analyzer is received, our technicians will evaluate your instrument and will send you a formal estimate. Services are performed only AFTER approval. Standard and rush Vitrek PA904AD power analyzer repair and calibration service are also available. To receive a Vitrek PA904AD power analyzer repair service quotation, simply fill out the Vitrek Quote form and one of our customer service associates will respond to you as soon as possible.