Dive Alert SMB+ Surface Marker Buoy Accessories Snorkeling Fins and angles from a variable

and angles from a variable distance quickly and with high accuracy

Nitrox and Free-Dive

75" blade length-9

the downstream valve opens in the same direction as the incoming airflow

Dive Alert SMB+ Surface Marker Buoy Accessories Snorkeling Fins and angles from a variableThe DiveAlert SMB (surface marker buoy) features Semi Closed Circuit (one way valve) construction, which prevents air spill at the surface. The DiveAlert SMB (surface marker buoy) features Semi Closed Circuit (one way valve) construction, which prevents air spill at the surface. Inflate on the surface to attract visual attention or redundant flotation. Inflate at depth to send up as a surface marker. Solas reflective tape (Coast Guard approved) across