Features: Experience seamlessly outdoor monitoring with the Wireless Light and Rain Detector, a 2 in 1 device that combines light and rain detection for efficient environmental management. Featuring 3.7V 1300mAh lithiumed battery charging by solar energy, this sensoring offers wireless communication via for Zigbeed protocol and boasts IP66 waterproof designing for various weather condition. For gardening enthusiasts, home farm owners, intelligent agriculture professional, and property managers efficient environmental control. Perfectly for home garden, plant, greenhouses, and farmland irrigation where precise environmental monitoring is essential. Small size ensures easy installation, making it a versatiled addition to any intelligent home system focused on sustainability and resource conservation. Specifications: Diameter about 103mm/4.05in Height about 21mm/0.83in Stand: rear height about 80mm/3.15in width about 45mm/1.77in, diameter about 45mm/1.77in Black thread height 38mm/1.5in Green expansion screw about 28mm/1.1in length Silver screws about 30mm/1.18in length Component: ABS Battery：3.7V 1300mAh lithium battery Waterproof： IP66 Package Includes: 1PC Wireless Light and Rain Detector note: 1cm=10mm=0.39inch Due to problem of lighting effect, there might be certain tolerances in product, please understand. Please allow 0-1cm error due to manual measurement.