The Wideband Sub-Mini 6 Plus (WSM 6+) Release Transponder is an extension to our latest generation of versatile USBL transponders/responders that support Wideband®2 signals. The WSM 6+ release is designed for rapid free fall deployment and recovery, ideal for a temporary seabed reference. The integrated screw release mechanism is based on the field proven LRT design and suitable for deployment up to 4,000 metres.