The group's principal activity is to provide power generation products for protecting critical equipment from voltage or outages, transient surges and harmonic distortion. The products of the group include standby power systems, bi-fuel power systems, modular power systems (MPS), automatic transfer switches, remote monitoring systems, generator controls and automatic home standby generators. In 2008, the group was acquired by Titan Energy Worldwide, Inc. The group operates from Minnesota, United States.