The Western Instruments WC-6UW Compact Underwater Yoke is developed for Underwater use, such as Offshore Platforms, Pipelines, Ships, etc. The WC-6UW is supplied from a switchable Top Side power supply; 115 or 230 VAC, Pulsed DC, or a 12 Volt Battery. The WC-6UW is supplied with a Pig Tail, or optionally with 250 feet (76m) of Power Cable