Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
reefraff [b:Mirror[/b] Essentially a daylight strobe. Includes the CD-ROM. I've not heard of doubling them up and don't know why that would help, but they're supposed to be fairly effective, durable and lightweight replacements for the old chromed steel. I'll drag it along in roughish water or if there's going to be a current that might put some distance between me and the boat in a hurry.
Steven
Steven, I was going to start a new thread and ask about surface marker dye but I see this old thread's been revived.reefraff:Dye packet: Consistently rated as the most effective device by SAR teams. A real PITA when the packet breaks in your luggage.
DiverBuoy:In the November 2002 issue of Dive Training magazine they have an ad for Pro Sub's Air-3 Air Control Device. Like Air-2 devices the idea is an all-in-one. In this case an LPI with a regulator (octo) and a horn. And rumor has it they have solved the above/below water issue of other air horns.
You see for years mfgs have been bragging that their devices can be used above and below water - but in fact the designs were mechanically directed for EITHER above or below but not both. This single function could not be stretched for both purposes. The above water unit would make almost no sound u/w. The devices created for u/w would sound like a muffled sick duck above water and have limited range in which they can be heard. Taken out of their element - they don't sound anything like the ones designed for that element.
This new Air-3 all-in-one device includes a "dual" air horn - that covers both environments.
I however, cannot find the item on their website, but the magazine gives 830-257-0022 as a contact number in the magazine.