Weatherproof Motion sensors-works well in rain or snow Super Easy To Install And Customize,Install this wireless outdoor motion alert system in just a few minutes Easily adjust the sensor's sensitivity to avoid interference like leaves or small animals, or expand your security zone to up to 8 additional sensors Rechargeable Expandable Sensor With the solar panel the sensor is equipped with a rechargeable battery for up to 24 months on a full charge! Customize your chimes, sounds, volumes, and more, Manufacturer: RFGTHY