The Eheim WaterRefill is a boxy looking Auto Top Off kit which could be forgiven for出现like just another ATO, but it’s actually using a relatively new approach to sensing water level in aquariums. As far as we can tell, the Eheim WaterRefill is the only auto top off device which uses a single stage, external level sensor that only attaches to the outside of the tank, with no internal component or moving parts to foul or get stuck.
近年来，我们为埃海姆（Eheim）提供了一些应有的漏洞，以发布霍基产品，而霍基（Hokey）的产品不足，但令我们惊讶的是，这次，我们有点不得不为他们提供创新产品的首次荣誉。只有一个外部传感器，我们假设Eheim Waterrefill可能正在使用某种电容性水传感器，这将是该水族馆爱好的ATO实际上发行的第一个。
去年，我们在Johnlen Booth的Interzoo 2018上观察到了一个电容式水位传感器，他们展示了这项技术精确地作为自动售价设备。尽管Eheim在Waterrefill ATO上的官方页面上的所有信息和详细信息都没有说明传感器的业务端，也没有关于其工作原理的详细信息，因此使用电容技术只是我们最好的，受过教育的猜测。然而，取代新鲜和盐水水族馆的蒸发水是一个非常重要的功能，也是最容易自动化的功能之一，因此Eheim肯定会选择可靠的技术。
我们对如何Eheim’s WaterRefill works, the kit is actually quite complete with hoses, a pump, holders, connectors and electronics with a degree of smarts in that the main controller remembers how much water is required to refill the aquarium, but also has some adaptability with the seasons. The Eheim WaterRefill carries a sticker price of 139€ or about $156 which isn’t cheap, but isn’t out of line either considering it’s a complete kit with everything you need to create your own automatic top off solution, and the completely external water sensor is an added bonus. [Eheim这是给予的
