PADI Delayed Surface Marker Buoy
£135 1day/2dives

Delayed Surface Marker Buoy DSMB
DSMB’s are an essential piece of advanced diving equipment that are used to provide a vertical ascent reference line during open water ascents. They also provide a visual surface reference to the diver’s location and a vital staging point for completing decompression and safety stops. Without proper training DSMB’s can be tricky to use and sometimes they cause problems. So during this course you will learn how to use a DSMB safely and efficiently and we will introduce you to the different styles of DSMB that are available.