Substrate moisture
Know exactly when to water. Avoid overwatering or letting the pot dry out too much between waterings.
PRECISION CULTIVATION
Your grow, measured where it all happens: at the root.
A connected soil sensor that tracks moisture, electrical conductivity and temperature at any time, right from your phone. Water with more control and precision, saving resources and standardizing your grow.
WHAT THE SENSOR MEASURES
The numbers that decide a harvest.
Every reading comes straight from the root zone, inside the pot, and is logged throughout the day so you see trends, not just a number from the runoff after watering.
Conductivity (EC)
Track nutrient concentration in the substrate and spot salt buildup before it shows up in the leaves.
Soil temperature
Cold roots absorb poorly, hot roots suffer. See how pot temperature shifts between day and night.
HOW IT WORKS
From pot to phone in three steps.
01
Push the sensor into the pot
The three steel prongs sit in the root zone, where the plant actually drinks and feeds.
02
The module sends the readings
The sensor talks to the control module, which sends the data over your Wi-Fi network to the cloud.
03
Monitor from anywhere
Open the app to see current values, history charts and the alerts you set up.
Pot 01● LIVE
Moisture42%
EC1.8
Temp.23°C
Moisture · last 24 h%
00h06h12h18h24h
Moisture below the limit you set. Time to water.
THE APP
Your whole grow in the palm of your hand.
An Android and iOS app for growers who take it seriously: clear data, no clutter, and alerts only when they matter.
Real-time readingsCurrent values for each pot, updated continuously.
History chartsSee how each measurement changed over the day and week.
Custom alertsSet your limits and get notified when something goes out of range.
Remote monitoringCheck on your grow from home, work or while traveling.
PRECISION
Good data is calibrated data.
Terra Metrics is designed to be calibrated with reference solutions, so the number on the screen matches what is really happening in the substrate. It is the difference between a guess and a decision.
And since every reading is stored, you can compare cycles, understand what worked and repeat the result next harvest.
SPECIFICATIONS
Inside the sensor.
MeasurementsSoil moisture, electrical conductivity (EC) and temperature
ProbeThree prongs, installs directly in a pot or bed
ConnectivityWi-Fi 2.4GHz, sending data to the cloud
AppAndroid and iOS
Power supply12 V DC
Ranges and accuracy
| Measurement | Range | Accuracy | Resolution |
|---|---|---|---|
| Moisture (VWC) | 0 to 100 % | ±2 % (0–50 %), ±3 % (50–100 %) | 0.1 % |
| Temperature | −40 to 80 °C | ±0.5 °C | 0.1 °C |
| Conductivity (EC) | 0 to 20,000 µS/cm | ±3 % (up to 10,000), ±5 % (10,000–20,000) | 1 µS/cm |
Be one of the first to grow with data.
Leave your email and we will let you know when Terra Metrics is available.