Testo is showing a new series of digital a/c and refrigeration system analyzers, the Testo 523, 556, and 560. These rugged meters are designed to help technicians set up, analyze and maintain a/c, heat pump, and refrigeration systems. They simultaneously measure, display, and print high and low side pressure, line temperature, and calculate saturation temperatures, superheat, and subcooling for 30 refrigerants. The 560 also measures and records system vacuum.

Testo Inc., 35 Ironia Rd., Flanders, NJ 07836; 800-227-0729, ext. 123 or 134, or 973-252-1720; 973-252-1729 (fax); info@testo.com; www.testo.us

Publication date:01/15/2007