Just slip it on the lower part of the tank where it s easy to reach when underwater.
Tank banger stick.
To grab the attention of someone in the diving group pull the ball back and allow it to hit the tank.
It works yet is small and unabtrusive.
I attach this tank banger as a safety precaution whenever i go diving.
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Grab the ball release and bang batman.
They were also marked to use as a measuring device.
Great product and the rubber should last forever if you wash it after salt water exposure.
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Product description who needs to spend a bunch of money on those high end signal devices when you can simply attach this to your tank and gently pull on the plastic knob to make a nice clank noise to get your dive parter s attention available in assorted colors.
Scuba choice diving dive diver cylinder tank banger signaling device 3 6 out of 5 stars 20.
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One even had an integrated shaker noisemaker.
Tank bangers consist of a plastic ball attached to an elastic band and is strapped over one s scuba tank.
A dive pointer stick can be used as an alternative to a tank banger.
I saw a few of the dms during my recent trip to thailand who were carrying solid stainless steel rods for use as pointing sticks tank bangers and bracing support for pushing against the wall to help hold position without having to touch the wall.
Just remember to take it off of rental tanks when you leave the dive store.