The only substrate sensor purpose-built for commercial cannabis.
You cannot automate success on cheap data. The TEROS ONE provides the most accurate root-zone visibility in the industry, giving your head grower the flawless physical truth they need to scale their expertise, execute a master strategy, and go home on time.
Measure what matters
Complete visibility where it matters most.
The TEROS ONE does not estimate or guess. It acts as the digital nervous system of your facility, eliminating the need for manual spot-checks by measuring the three most critical substrate metrics directly at the root zone, 24/7.G

Volumetric Water Content
Measure water in your substrate as a precise part of its volume. Perform drybacks and confirm field capacity without probing pots.

Electrical Conductivity
Measure root zone nutrients accurately. TEROS ONE separates VWC and EC, measuring pore water EC up to 20 dS/m for heavy crops.

Substrate Temperature
Monitor the exact ambient temperature of your growing medium to protect root health and optimize nutrient uptake.
WHY THE HARDWARE IS TRUSTED
The engine of crop steering.
You can’t run a multi-million dollar canopy on consumer-grade gadgets. Built on 40+ years of legendary soil science and powered by our patented sensor technology, the TEROS ONE is the most accurate sensor on the market, engineered exclusively for the extreme environments of commercial indoor cannabis.
“AROYA sensors have been a critical component of our success. They offer invaluable visibility, allowing us to maximize the efficacy of precision irrigation with tighter steering and control.”

The Build
This is industrial-grade infrastructure. Built with resilient epoxy fill and corrosion-resistant stainless steel needles, it delivers a 5+ year battery life under heavy commercial use.
Whether you run rockwool, coco, or soil, the alignment tool ensures perfect placement every time. No constant recalibration, no sensor drift, and no internet setup at the room level—just pure, uninterrupted ground-truth data.
consistent results
5+ battery life
Corrosion resistant needles

AROYA Software
Hardware that amplifies your expertise.
A head grower’s time belongs to driving facility strategy and elevating operational standards, not chasing runoff or updating whiteboards. The TEROS ONE gathers the raw physical truth, and AROYA Intelligence translates it into a clear operational picture.
A head grower’s time belongs to driving facility strategy and elevating operational standards, not chasing runoff or updating whiteboards. The TEROS ONE gathers the raw physical truth, and AROYA Intelligence translates it into a clear operational picture.
When you deploy the TEROS ONE, you aren't just installing hardware. You are unlocking AROYA Ignite.
As the hardware continuously streams live VWC, EC, and temperature metrics, the software instantly interprets those millions of data points into a single, clean dashboard.
Your cultivation team gets an immediate visual trend of how the crops are drinking and feeding. You don't have to guess how the plant is metabolizing.
By logging your data into historical "Golden Batches," you empower your team to replicate their highest-grade harvests, room after room, saving countless hours of manual labor.

AROYA HARDWARE
Flawless execution. Absolute control.
Bridging the gap between seeing an issue and fixing it is where you get your time and money back. The TEROS ONE integrates seamlessly into your facility architecture to drive intelligent, closed-loop execution.
Bridging the gap between seeing an issue and fixing it is where you get your time and money back. The TEROS ONE integrates seamlessly into your facility architecture to drive intelligent, closed-loop execution.
When you deploy the TEROS ONE, you aren't just installing hardware. You are unlocking AROYA Ignite.
Intelligent Execution
Connect your sensor data directly to AROYA's automation engine. If your strategy calls for a precise 15% dryback, the moment the TEROS ONE confirms that exact target, the intelligence autonomously triggers your irrigation valves to the drop.
Facility-Wide Integration
Push your root-zone data securely into your existing facility control systems, creating a unified network where your climate and irrigation infrastructure respond dynamically to actual plant demand.
Intelligent Execution
The software never runs rogue; it is simply the ultimate, error-free employee executing your master plan. You set the rules, define the thresholds, and maintain the final say. The intelligence covers the night shift so you don't have to.
Customer Success
Data is just the baseline. Mastery takes a team.
AROYA has a dedicated customer success team of the industry's most experienced cultivation professionals, focused entirely on delivering your success. We pair you with seasoned operators who help translate your new root-zone visibility into immediate financial returns
AROYA has a dedicated customer success team of the industry's most experienced cultivation professionals, focused entirely on delivering your success. We pair you with seasoned operators who help translate your new root-zone visibility into immediate financial returns
When you deploy the TEROS ONE, you aren't just installing hardware.



The engine of crop steering
Your Best Run Becoming Your Standard Run.
In a compressed wholesale market, consistency is your only defense. By feeding AROYA software with flawless TEROS ONE data, you transform cultivation craft into a measurable financial asset, driving up to a 5X potential ROI for your facility.
In a compressed wholesale market, consistency is your only defense. By feeding AROYA software with flawless TEROS ONE data, you transform cultivation craft into a measurable financial asset, driving up to a 5X potential ROI for your facility.
“AROYA has completely changed the way we operate. Without these substrate sensors, there's no way we could oversee cultivation from Los Angeles to New York City at the level we do.”

Labor Recovery
Reclaim thousands of manual labor hours previously spent physically probing substrates and logging daily spot-checks.
Resource Efficiency
Eliminate excessive runoff and nutrient waste by automating irrigation based on exact root-zone demand rather than rigid, estimated schedules.
Volumetric Water Content (VWC)
Measure water in your substrate as a precise part of its volume. Perform drybacks and confirm field capacity without probing pots.
FAQ
Frequently Asked Questions
The TEROS ONE measures the three most critical root-zone metrics: Volumetric Water Content (VWC), Electrical Conductivity (Pore Water EC), and Substrate Temperature.
The sensor acts as the digital nervous system of your facility, capturing highly precise measurements every 3 minutes, 24/7, to ensure you never miss a shift in your substrate.
The TEROS ONE is engineered for total commercial versatility and provides flawless data whether you run rockwool, coco, or soil. It includes a specialized alignment tool to ensure perfect, repeatable placement across any growing medium.
Outdated capacitance sensors cannot differentiate between water and fertilizer salts, which creates dangerous data drift during heavy feeds. The TEROS ONE utilizes an isolated frequency to ensure your VWC and EC readings never contaminate each other, allowing it to measure primary pore water EC up to an extreme 20 dS/m without losing accuracy.
No. The TEROS ONE is engineered for heavy industrial reliability, meaning zero constant recalibration and zero sensor drift. Once it is perfectly placed using the alignment tool, it delivers pure, uninterrupted data collection.
The sensor features an embedded lithium battery designed to deliver a 5+ year lifespan under continuous commercial use.
THE DETAILS
Technical Specifications

TEROS ONE
Specification
Value
VWC Accuracy
± 0.05 m3 / m3
Measurement Interval
3 minutes
EC Range
3 min0 to 20 dS/m (tested)utes
VWC Range
0 to full saturation
EC Accuracy
± 2 % or ± 0.05 dS/m (for 0 < EC < 20 dS/m)
Temperature Range
± 2 % or ± 0.05 dS/m (for 0 < EC < 20 dS/m)
Temperature Accuracy
± 0.3 °C
Power
Embedded Lithium Battery, 5+ year life
Material
ASA Plastic, Epoxy fill, Stainless steel needles
Patent
U.S. Patent No. 11,415,612