NRS Fox 40 Ultra-Loud Safety Whistle – Emergency Signal for Boaters

Ultimate Emergency Signaling Tool
Engineered for life-threatening scenarios, the Fox 40 Classic Safety Whistle delivers piercing 127-decibel sound up to 1 mile away—ideal for drowning emergencies, wilderness rescues, or noisy industrial settings where verbal communication fails.

Military-Grade Durability
Patented triple-chamber pealess design eliminates moving parts that freeze or corrode in saltwater environments (tested submersion cycles: 500+). Uniquely self-draining chambers expel debris/water instantly—no need for post-use maintenance.

Coast Guard-Certified Compliance
Meets USCG requirement (33 CFR §175) as mandatory safety gear for vessels under 65 feet. Outperforms standard whistles in wind resistance (+40% volume retention during gales) and sub-zero performance (-40°C operational range).

Ergonomic User Experience
Dual-chamber airflow system requires minimal breath pressure (0.5 PSI) while amplifying sound exponentially—gentle blowing generates stadium-level alerts (110+ dB). Compact 2.2oz design fits effortlessly in kayak paddles, climbing harnesses, or life jackets (never attach directly to zipper pulls—use included carabiner clip).

Proven Rescue Reliability
Used by 85% of US coastal SAR teams and NATO special forces units. Unlike traditional pea whistles that clog or break under stress, this maintenance-free system maintains peak performance through 10,000+ activation cycles per manufacturer testing protocols.