You'll know your fish aren't on edge when you use the super accurate Fluval Edge Digital Aquarium Thermometer. The easy-to-read design mounts on the outside of the glass so you can see at a glance that everything in your aquarium is going swimmingly. About FluvalA world leader in quality aquatic products and design, Fluval is trusted by fish-hobbyists everywhere for creating innovative products with stellar dependability. For over 30 years, Fluval has earned a global reputation based on their creative and innovative products. With an emphasis on convenience, ease of use, and durability, Fluval has lead the way in providing efficient and reliable canister filtration systems since 1982. Fluval's pioneering spirit and strong commitment to technological advance are exhibited in its wide range of products, from stylish and practical aquariums like the Fluval Edge, Profile, Chi, and Studio to their top notch Fluval G Series Filters. For the perfect intersection of design and technology, Fluval is the name to know.