Soil moisture in Tomato bed dropped to 18% at 2:14 PM, below your 25% alert threshold. Last reading three minutes ago.
It's been steady around 30% for the last two days, so this is a meaningful drop. Probably time to water.
Realtime monitoring for soil, water, and the things that grow.
From thriving plants 🌿 to hydrated animals 🐔 to hidden leaks ⚠️, Hydra lets you see what’s happening wherever water matters. Plug in a sensor, claim it from the web dashboard, and let Hydra watch it for you.
Every reading is logged. Every meaningful change becomes an event. When something crosses a threshold you care about, like soil too dry, water where it shouldn’t be, or a sensor that stopped reporting, Hydra lets you know.
Sign in from any browser to see the state of every sensor you own, updated live as readings come in. Native iOS and Android apps are on the way for when you'd rather check from your pocket.
What you'll actually see.
Live device state, an honest event log, and alerts that don't cry wolf.
All your devices, one screen
Live readings from every sensor you own. Color-coded so trouble is obvious before you scroll.
Claim a device in seconds
Enter the device ID and 6-digit code printed on the sensor. Done.
Hydra alerts
Notifications that earn their keep.
Hydra is quiet by default. When a sensor crosses a threshold you set, here's what shows up.
The water sensor next to the water heater reported wet at 11:42 PM and cleared at 11:58 PM. No further readings outside normal.
Worth a look — sixteen minutes of contact usually means something dripped, not flooded. The full event timeline is on your dashboard.
Sample alert content — your sensors, your thresholds.
How it works
- 1
Plug in a sensor
Power up an ESP32-based water or soil sensor. It connects to your Wi-Fi and reports in on its own.
- 2
Claim it from the dashboard
New devices show up unclaimed. Name it, pick what counts as an alert, and you're done.
- 3
Get notified when it matters
Hydra watches every reading. When something crosses the line, you hear about it — by email, Telegram, or both.
Get started
Sign in to claim your first device, or take a look at pricing.