The Cygnus W1 Probe Handler is designed for use on Work Class ROVs. It can be held by a manipulator arm and supplied with either T bar or Fish Tail handles. Constructed from 316 stainless steel throughout, it has a depth rating of 4000 msw.

The Ultrasonic probe alignment is provided by a double jointed coupling that enables 15 degrees of movement in both planes guided by four pins. A shock absorbing spring reduces any impact loading on the unit. The design allows the manipulator arm to present the ultrasonic probe to the surface to be measured. Any misalignment will be taken up by the coupling resulting in less movement of the manipulator arm position.