how is this powered?
BILLY C it plugs into the low-pressure hose on your regulator that you would normally plug into your BC / Octo.
WILLIAM M With a regulator first stage with a normal lp inflator hose and a scuba tank
BRIAN W It plugs into the port on your regulator that you would plug into your BC. The pressure in your tank powers it,
LOWREY H This item is an adapter to use compressed air in a scuba tank to fill car tires. It utilizes the compressed air in the tank as well as the low pressure hose on your BC. You would connect this device to the BC where you normally attach the BC inflator. Then, put BC on tank and open valve. Now use the tire inflator to pump up tires. Handy if you are shore diving and have deflated tires for sand driving.
DAMIEN B It's powered by air pressure. The connector hooks up to the bcd hose on your scuba regulator. So, all you need is a scuba tank & your regulator. Most electric air pumps/compressors can use this thing too & have this type of connector available.
WILLIAM G You plug the inflator hose (to your bc) into it after mounting your reg on a tank with sufficient pressure in it).
CARL M The inflator connects to your low pressure inflator hose, allowing you to use the air in your tank to inflate a tire. Very handy if you have a low tire at a dive site.
MICHAEL G I am a scuba diver and own my own scuba air tanks. A scuba diver uses an inflatable jacket called the BCD Body Control Device. I simply attach the key ring inflator to where I would attach my jacket on the air regulator hose. Then I can pump up the tires on my wheel barrow, snow blower, cars and pedal cycles in my garage. This litle device is a must buy item for all scuba divers who own their own scuba tanks.