| Trident Divealert Signaling Unit DA 2X |  | | Attaches to your low-pressure hose in-line with your BC inflator. With the touch of a button, a signaling blast can be heard for over a mile above water. | |  | | Trident Divealert Signaling Unit DA 3X |  | | Attaches to your low-pressure hose in-line with your BC inflator. With the touch of a button, a signaling blast can be heard for over a mile above water. | |  | | Trident Dive Alert Standard D-1 |  | | Dive Alert is a specially designed, small, lightweight air horn that uses quick connect/disconnect hose fittings to become an integrated part of your power inflator. | |
| Trident Dive Alert Aeris/Oceanic D-2X |  | | Dive Alert is a specially designed, small, lightweight air horn that uses quick connect/disconnect hose fittings to become an integrated part of your power inflator. | |  | | Trident Dive Alert Tusa/Scubapro D-3X |  | | Dive Alert is a specially designed, small, lightweight air horn that uses quick connect/disconnect hose fittings to become an integrated part of your power inflator. | |  | | Trident Aluminum Underwater Noisemaker |  | | This aluminum underwater noisemaker is perfect for getting your dive buddys attention underwater. Just shake it side to side to make the rattling noise, drawing attention to your position. | |