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Zurich Instruments Ltd. is an Swiss company developing and selling advanced test & measurement instruments for dynamic signal analysis such as high performance lock-in amplifiers and impedance spectroscopes. The company is based in Zurich, Switzerland.

History
Zurich Instruments was founded in April 2008 as a spin-off from the Swiss Federal Institute of Technology (ETH Zurich) , The company launched its first HF2 product series in May 2009. The first product, the HF2LI lock-in amplifier was launched in May 2009. In 2010 a Phase-lock loop (PLL) for applications including AFM, MRFM and lasers was launched. In May 2011, Zurich Instruments and Nanosurf have announced the start of a strategic technology partnership, in which the HF2LI 50 MHz PLL from Zurich Instruments is the official upgrade path for the easyPLL platform in Nanosurf's high-performance scanning probe microscopes.