Reads your whole-house water filter's color and tells you when it's dirty — from anywhere.
// current release: whole-house clear-housing water filtration systems only
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A water filter tells you its own status — it changes color as it fills with impurities. A new cartridge is pale; a spent one is dark. The catch is that nobody's looking, because the whole-house filter is usually out of sight in a basement or utility area.
EyeOnFilter mounts at the transparent window of your filter housing. Its white LEDs illuminate the cartridge, and an optical color sensor reads the reflected light as red, green, and blue values. The CPU maps that color to a status — not dirty, monitor, or replace — and sends it over Wi-Fi to the app.
To last years on batteries, the sensor stays asleep almost all the time. It wakes about once a day, takes a reading, reports in, and goes back to sleep. You only hear from it when something changes — ideally, a single notification that it's time to swap the cartridge, wherever you happen to be.
| Sensing method | Optical color sensor + illuminating white LEDs |
| Color resolution | RGB, 12-bit per channel (R 615nm / G 540nm / B 465nm) |
| Connectivity | Wi-Fi (2.4 GHz) + Bluetooth, integrated antenna |
| Processor | Onboard CPU with rules engine |
| Power | 4× AA batteries, regulator + battery monitor |
| Battery life | 2+ years (daily wake, sleeps otherwise) |
| Reads | ~once per day (configurable) |
| Mounts to | Clear/transparent housing of compatible whole-house water filtration systems |
| App | iOS & Android, native |
| Properties | Unlimited sensors & properties per account |
| Status model | Not dirty / monitor / replace (color-derived) |
| Warranty | 1 year limited · Patent-pending |