The TestoKool 523 digital gauge set is designed for air conditioning, refrigeration, and heat pump maintenance. It features high-side and low-side pressures (up to 725 psi, 0.1 psi resolution, and 0.5-percent FS accuracy) and saturation temperatures (0.1 degree F resolution) for up to 38 refrigerants. It can measure, display, and record superheat and subcooling values automatically in seconds with a line temperature probe (148 degrees to 300 degrees). Refrigerant flow can be monitored and controlled during evacuation or charging with the built-in, two-way manifold and sight glass. The data logging feature records up to 1,000 data files, tracks customer system history, and produces reports on a PC with EasyKool software.

Testo Inc., 35 Ironia Rd., Flanders, NJ 07836; 800-227-0729; 973-252-1729 (fax);;

eProduct #192