Apeks Lifeline Halo Spool 30m Used Masks A lightweight waterproof ECG (electrocardiogram)

A lightweight waterproof ECG (electrocardiogram) transmitter is clipped onto the elastic belt that straps around the chest

Rear notch for the securing the fin strap in place

- High-stretch leak free neoprene cuffs

Some divers will want to install 2 sets for this purpose

Apeks Lifeline Halo Spool 30m Used Masks A lightweight waterproof ECG (electrocardiogram)The Halo spool is the latest addition to the Apeks Lifeline family of spools and a true innovation in the diving market. With 30m of line, the Halo's large diameter fits perfectly in your hand and allows for easy, controlled SMB deployment and quick line retrieval even with thick gloves.