Lifeloc Technologies, Inc. engages in the development, manufacture, and marketing of portable hand-held and fixed station breathalyzers and related accessories, supplies, and education. It operates through the Product Sales and Rentals segments. The Product Sales segment is involved in the sale of physical products, including portable hand-held breathalyzers and related accessories, supplies, education, training, and royalties from development contracts with OEM manufacturers. The Rentals segment handles the rental portion of the building. The company was founded in December 1983 and is headquartered in Wheat Ridge, CO.