A filter shows its own status by changing color. EyeOnFilter is the eye that watches it — here's exactly how.
As a filter traps impurities, its media darkens — a new water cartridge is pale, a spent one is deep amber or brown. That color change is a reliable signal of how much life is left.
EyeOnFilter shines white LEDs onto a whole-house water filter through its clear or transparent housing, then measures the reflected light as red, green, and blue values. The onboard CPU maps that color to a status and reports it.
Download the EyeOnFilter app, then place the sensor against the clear or transparent housing of your compatible whole-house water filtration system. No tools, no plumbing changes.
During setup you enter your home Wi-Fi credentials through the app; the sensor registers itself and joins your network. No hub or bridge.
The sensor mostly sleeps. About once a day it wakes, the LEDs illuminate the filter, the color sensor takes a reading, and it reports dirty / not-dirty over Wi-Fi.
When the color crosses the dirty threshold, the app notifies you anywhere in the world. Order a replacement cartridge in a tap.
Measures red, green, and blue light reflected from the filter at high resolution to map exact color.
A regulator and battery monitor feed the CPU, radio, sensor, and LEDs. Daily-wake duty cycle means 2+ years.
An integrated radio and antenna talk straight to your network and phone — alerts reach you anywhere.