Acme whistles acme thunderer t2000 whistle green ultra-loud, pealess performance whistle built for poolside control. Ultra high pitch, very loud, big whistle in every sense at 125dba. The t2000 is completely unaffected by water and its pealess design means it never sticks or warbles mid-blow. Excellent for indoor and water sports, it is approved for referees, lifeguards and basketball. Whether you are managing lane swimming or running a gala, this whistle delivers a commanding, consistent blast every time. Loud, reliable, and ready poolside. 125Dba pealess design water-resistant lifeguard approved indoor sports 3 key features unaffected by water the pealess chamber design eliminates the small ball found in traditional whistles, so water ingress never muffles or distorts the sound. You get a clean, piercing tone every single time you blow. It is purpose-built to perform in the wet, humid conditions of indoor pools. 125Dba output at 125dba this is a seriously loud whistle, cutting through poolside noise, music and crowd chatter without hesitation. That level of output is why it is approved for referees and lifeguards who need an instant, authoritative signal. Size and sound output make it a big whistle in every sense. Approved for officials and lifeguards the t2000 carries approval for referees, lifeguards and basketball, giving confidence that it meets the standards required in competitive and safety-critical environments. Its robust construction stands up to daily profess...