A lightweight visor with a water sensor that is immune to splashing triggers an alarm when a swimmer's head submerges, notifying attendants that assistance is urgently required.  Alarming occurs at Safety Turtle Base Stations within 200 ft.  For adults with special needs and senior citizens doing aquatic physiotherapy at home or at the clinic. The product particularly addresses the heightened safety concerns of aquatic therapists treating recovering stroke victims, etc. To see prices and check this out further visit safetyturtle.com.