Halcyon's series of Diver Alert Markers provide maximum visibility and redundant flotation at the surface. Halcyon markers are available in three sizes:

Small Alert Marker: 3.3' long, 6 lbs. lift Big Alert Marker: 4.5' long, 40 lbs. lift Super Alert Marker: 6' long, 52 lbs. lift

Big and Super Alert Markers both come with Coast Guard-approved SOLAS reflective tape across the top for improved visibility.

• Inflate at the surface to attract attention
• Inflate at depth to send up as a surface marker
• Halcyon Diver Alert Markers feature closed-circuit (one-way valve) construction: markers can double at supplemental flotation at the surface and can't unintentionally dump gas during its ascent when used as a marker from depth.
• All markers are small enough when deflated to fit in a Halcyon thigh pocket or MC Storage Pak
• Halcyon's Defender spool provides rapid, jam-free deployment and retrieval while at depth, allowing you to use your Halcyon Diver Alert Marker during drift dives and deco stops.

Retail Pricing: Small Diver Alert Marker: $58 (Oral-inflate); $68 (closed circuit) Big Diver Alert Marker: $89 Super Diver Alert Marker: $96