GS301 with CE&RoHS infrared swimming pool alar

infrared swimming pool alarm Post distance max.20 meters Beam of light:2 beams Detector method:infrared figure impulse Detector speed:50-700ms Fewer false alarms with advanced software Not effected by outside forces: wind rain, etc Works easily with all forms of pool cleaning robots Powerful 101 DB alert siren Pass mode allows for entry and automatically rearms 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 to alert consumer that there has been an interruption in their source voltage Install in minutes with common tools