The Eve Aqua is a small controller that you attach to an outdoor water outlet, letting you activate or shut off water flow via the Home iOS app, Siri voice commands, or automatic HomeKit scenes. Eve says this makes the accessory perfect for sprinklers and can prevent gardens from flooding thanks to an auto shut-off feature.
Elgato Systems announced the Eve Aqua this past May, and then in June Elgato revealed that it would shift its focus "entirely" to its line of Eve devices. Elgato is now "Eve Systems," with plans to offer a "constantly expanding ecosystem" of accessories designed exclusively for Apple's HomeKit platform.
Despite the name change, Apple.com still lists the water controller accessory as the "Elgato Eve Aqua."
Following the restructured company, Eve Systems teased users with new product announcements set to come out of IFA Berlin, which begins on August 31 and runs through September 5. For current products, Eve sells many of its devices on Apple.com, including the Elgato Eve Degree Connected Weather Station, Light Switch, Wireless Motion Sensor, Room Sensor, Energy Smart Plug, Button, and more.