Tecline Semi-Closed Surface Marker Buoy (SMB)

The Tecline Semi-Closed Surface Marker Buoy is a high-visibility signalling device that allows the position of divers to be seen from the surface. All divers should at least carry a high-visibility inflatable signalling device with them. It can be invaluable, as you'll never know when you need to let people on the surface know your position, or to signal to your dive boat after a dive, if you've drifted away.

The semi-closed SMB is 122cm / 4ft long and 18cm / 7.09in wide, making it visible from afar, and also easily inflated with a single breath, while at depth. It has a lift capacity of approximately 12.4kg. A se;f-sealing baffle at the bottom allows a quick and easy inflation using the exhaust from a diver's second stage, and to remain fully inflated while on the surface. An Over Pressure Valve prevents damage caused by over-expansion, especially when the SMB is launched from depth. A durable low-profile metal one-way inflation valve can be inflated orally or connected to any standard inflator hose for speedy deployments. A single-eye stainless steel bolt snap to aid in stowing the SMB away, and adding weight to keep the device standing tall easily. An integrated bungee and storage bag is also included to retain the SMB neatly.

Available in Hi-Vis Orange or Hi-Vis Yellow. If the SMB is bright, it’s alright. Both colours are outstanding and make it easier to spot, though it is said that Orange works a little better on bright sunny days, while Yellow works a little better during dusk or under low-light conditions.

TECH PRO-TIP: Psst, technical divers emphasise a lot on safety and they usually carry at least two; different colours may have different meanings too, for example, an orange bag would mean that all's good, while a yellow would signify an uh-oh.