Signal help for emergency assistance with the Orion Alerter Basic 4 12 Gauge Launcher and Aerial Signal Pack. The 12 gauge safety launcher resists corrosion and features a bandolier. The four 12 gauge aerial flares burn for up to 7 seconds at an altitude of up to 500' with a brightness of up to 16,000 candelas. USCG approved for day or nighttime signal.