Founded in Oregon in 1944, Electro Scientific Industries (ESI) is now one of the nation’s largest manufacturers of test equipment technology. ESI is a leading supplier of laser systems, photonic solutions, and decade resistors for microelectronics manufacturers. ESI pushes the boundaries of the electronics industry with innovations in resistance testing and measurements. Tegam bought ESI’s resistance product line in the 1990s, which passed to IET Labs in 2006. Today, the ESI product line complements IET’s, making IET the supplier of the globe’s most important impedance standards. Purchase a piece of breakthrough equipment from this popular brand used or refurbished at

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