Radicle™ Soil Carbon Sensor

Real-time soil respiration monitoring — built for the field, not just the lab
The SEED Radicle™ draws its name and inspiration from the primary, embryonic root of a plant. It tracks biological soil activity by measuring CO2 levels in the root zone, giving users fast, actionable insight into soil health and recovery.
VALIDATED IN THE FIELD
“The sensor helped us track change before it was visible above ground.”
In early field tests:
91% of readings fell within accuracy targets for CO2 sensing
Sensor performance held steady across multiple soil types and moisture levels
Detected increased respiration after biochar and fungi amendments, aligning with plant recovery and carbon retention
Grounded in Soil Respiration Science
Radicle uses NDIR sensor to detect CO2 concentrations in soil airspace
CO2 levels reflect microbial activity — the engine of soil carbon cycling and biological health
It’s a proven method for assessing soil vitality, ideal for monitoring amendment effects, remediation progress or regenerative practices.
Built for Field Conditions
Handheld and rechargeable for easy site-to-site use
Rugged enclosure; tested in wildfire-affected, urban and sandy soils
Used by growers, educators and researchers
Live Data, No Guesswork
Plug-and-play: insert in soil, leave for 15 minutes, read CO2 ppm
Onboard display for immediate feedback
Mobile dashboard stores readings and charts trends by location
Coming Soon — Soil Intelligence for Smarter Soil, Smarter Decisions
Machine Learning at Work
Each time a Radicle™ sensor collects data, it contributes to a growing dataset used to train our machine learning models. These models will identify patterns in soil recovery, predict amendment effectiveness and eventually provide site-specific recommendations. We’re not just measuring, we’re learning. And as more growers deploy Radicle™, the system becomes smarter, faster and more helpful.
Your data is protected and only contributes to shared insight with your permission.

GROW & GIVE STARTER KIT
The Grow & Give Starter Kit — a proof-of-concept project launched in Summer 2020 — helped home gardeners grow quickly, allowing SEED to assess ease of use and sensor performance. See it in action.