Productive Alternatives' most popular product is our stratus rain gauge and we have been distributing it around the world since the 1970's. It is the official rain gauge used by National Oceanic and Atmospheric Administration (NOAA) and the National Weather Service and can be found in use at weather stations everywhere. Sometimes it is sold as Stratus professional rain gauge and it is also sold under other names as well. The good news? You don't have to be a professional meteorologist to own one!. The best rain gauge (a.k.a. stratus) makes an ideal gift for weather buffs, gardeners, farmers or anyone interested in the weather. Guaranteed accurate to within 1/100th of an inch, it allows you to measure even the heaviest rainfalls, up to 11 in. Manufactured to US weather bureau standards, it is used by official weather observers around the world.