Operational since 1975, Dorlen Products Inc. has been manufacturing leak location equipment. The company supplies companies with water leak detection systems. Its product line comprises water alert, water alert sensor cable and water alert ceiling guard. Situated in Milwaukee, Wis., Dorlen Products Inc. provides ceiling guard water leakage sensing system that senses small amounts of water/liquid leakage. The company's Water Alert is installed in more than 21,000 sites throughout the United States. In addition, it provides low voltage water leak detection equipment.