The PoolEye PE41 was designed to meet the stringent demands of France's new NF P90-307 pool alarm standard - a standard that may form the basis for future U.S. state and local alarm requirements. * Active infrared for complete perimeter protection up to 25 meters * Fewer false alarms with advanced SMARTPOOL SMARTFENCE(TM) software * Not effected by outside forces: wind rain, etc. * Works easily with all forms of pool cleaning robots * Powerful 100 dB alert siren * Pass mode allows for EASY entry and automatically re-arms at preset intervals. * Battery back up provides 6 hours of perimeter protection even in the event of a power outage. * Unit emits low AC "CHIRP" for 24 hours to alert consumer that there has been an interruption in their source voltage. * Installs in minutes with common tools. * Alarms BEFORE pool entry - preventative rather than reactive * Recommended for all sizes of inground pools * Child-proof/water-resistant/weatherproof construction * Runs on AC transformer with Battery Backup * LED poles bolt to deck or patio * Control box/siren mounts to wall or fence * Trilingual installation/operation manual (English/French/Spanish) * Bilingual 4-color box (English/French)