||AC Instruments


Guildline Instruments has been the premier supplier of resistance measurement systems and standards to the world’s national laboratories for nearly half a century. Our broad product line encompasses several models of precision resistance standards optimized for particular applications including AC and DC current shunts, Power analyzers, Amplifiers and Capacitance bridges. Newer products include complete Quantum Hall Resistance systems, automated resistance measurement systems, high current range extenders and precision high current AC Transformers.