DW Healthcare Partners (DWHP) has announced it has completed an investment in LKC Technologies.

LKC, based in Gaithersburg, Md., is a manufacturer of electrophysiology testing devices. Founded in 1975, the company’s flagship product is RETeval, a handheld electroretinography and visual evoked potential device used to aid in the diagnosis and management of retina and optic nerve diseases.

DWHP, with its U.S. office in Park City, Utah, is a healthcare-focused private equity firm. Founded in 2002, the firm prefers to make shareholder liquidity, management buyout and growth capital investments in mid-to-late-stage companies.

Terms of the investment were not disclosed.