Canopy
Grow Sensor PRO
Leaf temperature, VPD, CO₂ and light, from above the plants.
Grow room monitoring for commercial facilities
Your best run, every run.
Grow Sensor monitors every condition in your rooms in one calibrated system, so the magic behind your best harvest stops being a mystery.
Measuring rooms at
01 — In the field
Trusted where the lights never turn off.
Head growers and operators from the US to New Zealand run their rooms on Grow Sensor.
“I've never second guessed the readings.”
Nichilas Ezzo
Head grower, FarmaceuticalRX
“The user-friendly tool that helps professional growers sleep well at night.”
Nate Lipton
CEO, GrowersHouse & CannaCribs
“It tracks the metrics that actually matter and brings real clarity to my grow environment.”
Tad Hussy
KisOrganics · Cannabis Cultivation and Science Podcast
We work with passionate growers to build the next generation of data-led growing.
02 — The problem
One bad run is all it takes.
Prices are falling in every market. Canada is down 50 % in five years, Germany 40 % in two, the US further still. Only premium flower holds its price. Data is the difference.
Every gram counts.
Margins no longer forgive mids. Profit is pulling the most quality from every pheno, every cycle. Every point of quality left in the room is margin lost.
Inconsistency kills.
Same genetics, different weight. It's rarely one mistake. It's a thousand small decisions made by feel, with no system holding them together.
Adapt or die.
Growing is hard and getting harder. One in four US cultivation licenses has disappeared in two years. The ones still growing put data first.
03 — The system
A good run isn't luck. It's a system.
The Grow Sensor reads the canopy. The substrate probe reads the root zone. Integrations pass it all to the automation you already run, and our team helps you act on it.
Root zone
SubSense probe
Water content, EC and temperature in the media.
Root zone, wireless
Coming soonGrow Node
pH, EC, water content and runoff, on its own Wi‑Fi.
App, control and AI
Control with the kit you already run.
04 — GrowOps — for facilities
Every room. Every run. One workspace.
GrowOps is the desktop workspace for multi-room facilities: advanced analytics, multiple sensors per room, full history across rooms and runs, custom recipes, crop registration.
Grows
⌘K
ViewSort byFilters
OG Kush
F2Flower · Day 342 min ago2 alerts
Humidity
73.6%
55 – 65 %
Amb VPD
0.82kPa
1.0 – 1.3 kPa
CO₂
1180ppm
1000 – 1250
ePPFD
842µmol
800 – 900
Temperature
26.2°C
25 – 28 °C
Gelato 41
Veg 1Veg · Day 211 min ago0 alerts
Humidity
62.4%
60 – 70 %
Amb VPD
0.94kPa
0.8 – 1.1 kPa
CO₂
880ppm
800 – 1000
ePPFD
610µmol
550 – 700
Temperature
25.1°C
24 – 27 °C
Every room, one screen
Group sensors by room and zone, standardise targets, with full history across rooms and runs.
Custom recipes
Build recipes visually: targets and limits for every phase of the grow. Repeat the run that worked, and dial in the next pheno faster.
Crop registration
Diary entries and measurements logged against every grow, with who and when attached. Retire the spreadsheet.
05 — The return
More from every room, every run.
The gains show in your first run, and the system pays for itself within the first harvest.
- More yield in your first run
- Up to 50 %
- Depending on the pheno. Your genetics were never the limit.
- Back on every grow cycle
- 2 weeks
- On average, each run finishes sooner.
- Back per grower, every day
- 2 hrs
- Up to 500 hours a year off manual checks and admin.
- To pay the system back
- 1 harvest
- Then the return stacks, run after run.
06 — Case study / Legacy AG
“No BS — it's the only sensor system I need.”
“Leaf temp and VPD, PPFD, CO₂, plus my Teros 12, all in one place. The best terps are coming from the rooms where the Grow Sensor is running.”
- Operation
- Legacy AG · New Zealand
- Grower
- Ben, head grower
- Setup
- GS-01 + SubSense + Teros 12, one system
07 — The team
A network of experts behind every grow.
Every grow, every detail. Industry specialists help you plan your rooms, steer your runs and take a second look whenever you need one.
Planning
Blueprint review and a placement plan, with every facility order.
Support
A named contact who answers within four working hours on priority support.
Steering
Book a specialist to review a run or troubleshoot a room.
08 — Facility Starter Bundle
Prove it over one run.
Three complete systems, mesh Wi-Fi, GrowOps for the run, onboarding and priority support. No automatic renewal into a paid plan.
One run, one price
From £2,995From €3,295 · From $3,795Ex-VAT, with SubSense. The whole bundle is covered by the 60-day money-back guarantee and 2-year warranty.
Order the Facility Starter Bundle09 — Questions
Asked before ordering.
Straight answers, in order of how often each one blocks the purchase.
Yes: growers report gains of up to 50 % in their first full run. The gains come from catching issues early, dialing VPD and irrigation, and repeating what works. Model your own payback with the ROI calculator, on your canopy and your crop value.
Hardware starts at £699 for a complete system: one-off, no contract. The free app is included. GrowOps is optional facility software from £99 a month, priced by how many Grow Sensor PROs you connect. Full rates on the pricing page.
At least one sensor per 400 sq ft (37 m²) of canopy on each tier, and at least one per cultivar. We usually spec one per 250 sq ft (23 m²), one per 400 sq ft across facilities over 15,000 sq ft of canopy, and up to one per 100 sq ft (9.3 m²) for tight crop steering. Substrate: one probe per 100 sq ft or per irrigation zone, and at least one per row. Send us your layout and budget and we'll spec the right density.
Fully. Send us your blueprints and we'll advise on sensor density and placement against cost; for larger deployments we'll come and set up on site. Whatever it takes to fit the system to your facility.
The Grow app is free with your sensor: unlimited history and alerts. Grow Plus is an optional upgrade in the app with advanced features for home growers. GrowOps is optional facility software, the desktop workspace for professional teams. It covers multiple rooms and sensors, cultivars, custom recipes, crop registration, and shared team accounts with role-based access across organisations and facilities.
Yes. GrowOps supports multiple organisations, multiple facilities per organisation, and role-based access for every team member. Everyone sees the rooms they should, nothing they shouldn't.
Yes: every unit is tested end-to-end as an assembled device, with multi-point verification across temperature, humidity, PPFD and spectrum. Calibration and test certificates are available on request.
Yes. Home Assistant works today, so readings can drive your fans, dehumidifiers, CO₂ and lighting. Full API access is available for custom systems, and our own irrigation controller is in development. Check out more of our automation integrations here.
You do. It's encrypted in transit and at rest, never sold or shared, and exportable via API or CSV whenever you want it.
Sixty-day money-back guarantee: email us and we'll refund in full. Hardware carries a two-year warranty against defects.
Measuring rooms at
Stop guessing. Start measuring.
Sixty-day money-back guarantee. Two-year warranty. Free app included.
Ready to buy? Order Grow Sensor