Safe-T-Alert Marine GasPropane Vapor Detector Provides protection against gaspropane spills or leaks. The remote sensor can help prevent accidents in the bilgeengine compartment during and after fueling. A sensor can be installed in the galley or LP tank locker to protect against propane leaks. Dual signalling alarms features an audible sound alarm and a visual warning light. Designed exclusively for marine use and to survive in harsh marine environments. Features a smart sensor that helps detec