Canopy
Grow Sensor PRO
Leaf temperature, VPD, CO₂ and light, from above the plants.
PartnerBy applicationFor craft facilities, by application
Grow room monitoring for craft facilities
Test it for 90 days. Then decide.
Grow Sensor measures every condition in your grow rooms. Partner facilities pay half when they order. If it works, we invoice the rest after 90 days. If not, send it back free and we refund your first half.
Measuring rooms at
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.
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.
The system
A good harvest isn't luck. It's a system.
The Grow Sensor reads the canopy, the substrate probe 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.
GrowOps, for several rooms
Every room. Every run. One workspace.
GrowOps is the desktop workspace for several rooms, free for six months for partner facilities: analytics, multiple sensors per room, full history across rooms and runs, custom recipes and a crop diary. The whole team works from the same data.
Grows
⌘K
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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. Repeat the run that worked.
Crop diary
Diary entries and measurements logged against every grow, with who and when attached. Retire the spreadsheet.
What it brings
More from every room, every run.
The gains show in your first run: more quality, fewer hours on manual checks.
- 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.
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
The team
A network of experts behind every grow.
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, included with the Facility Starter Bundle.
Support
A named contact who answers within four working hours on priority support.
Data reviews
Three data reviews with a specialist come free with the Facility Starter Bundle: at setup, mid-run and at the end of the run.
Partner facilities
Become a partner facility.
We grow with craft facilities. Partner facilities pay half when they order and the rest only if it works for them. GrowOps is free for six months. In return, you give us feedback from your rooms and share a short write-up of your results.
What you get
- The Facility Starter Bundle: a Grow Sensor PRO and SubSense probe for each room
- GrowOps free for six months, for the whole team
- Three data reviews, placement and setup included
Partner offer · by application
You pay50%now
Use it for 90 days. If it's useful, we invoice the other half. If not, send the hardware back free and we refund your first half.
How many rooms?
- You pay now
- $849
- After 90 days, only if it works
- $849
Prices exclude VAT. Outside the UK, import charges are paid on delivery. 2-year warranty.
See everything in the bundleQuestions
What facilities ask 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, depending on the pheno. The gains come from catching issues early, dialling VPD and irrigation, and repeating what works.
The Facility Starter Bundle at its normal price: one complete system per room, for 2 to 5 rooms. You pay half when you order and use it for 90 days. If it's useful, we invoice the other half. If not, send the hardware back complete and working, we pay the postage and refund your first half. GrowOps is free for six months, and three data reviews with us are included. Places are by application. In return, you give us feedback and share a short write-up of your results.
The Facility Starter Bundle is priced per room, at the normal shop price; the room picker above shows what you pay now and after 90 days. GrowOps is free for six months, then billed by how many Grow Sensor PROs you connect, monthly or yearly. A single complete system is also sold on its own, one-off and with no contract, with the free app. Prices exclude VAT.
Outside the UK, the buyer pays them on delivery. Our prices exclude VAT, and import charges are not included.
At least one per room and 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). In the substrate, one probe per 100 sq ft (9 m²) or per irrigation zone, and at least one per row. Send us your layout and we'll spec the right density.
The Grow app is free with your sensor, with unlimited history and alerts. Two subscriptions are optional. Grow Plus is bought in the app, with the first month free: desktop access, recipes with phases, a grow diary and crop steering metrics from the substrate probe, for up to 5 sensors. GrowOps is the workspace for teams with several users: zones, a cultivar library, grow reports and shared accounts with roles. Partner facilities get GrowOps free for six months.
Yes, with GrowOps: unlimited users, each with the right role. Everyone sees the rooms they should, and no others.
The app takes you through setup step by step. With the bundle you get a placement plan and team training before the run.
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.
You do. They're encrypted in transit and at rest, never sold or shared, and exportable via API or CSV whenever you want.
Partner facilities have 90 days to decide. If it doesn't suit you, send the hardware back, we pay the postage and refund your first half. Shop orders have a 60-day money-back guarantee. The hardware carries a two-year warranty against defects.
Measuring rooms at
Measure first, then decide.
90 days to decide. 2-year warranty. Free app.