Grow like you know what you're doing.
Croplock is a device that lives in your grow room. Sensors read your environment. AI reads your history. Every record stays on your hardware — not in anyone's cloud.
Most grow-room AI lives on a company’s servers.
Croplock’s lives in your tent.
A connected grow camera sends video of your plants to a company’s cloud. Croplock is built to do the opposite — to keep your grow, and everything it learns about it, inside your home.
It’s a small device that lives in your grow room and does what you actually want: it reads your environment continuously and says when it drifts — heat, humidity, VPD, light. It looks at your plants every day and keeps the picture. And when something is wrong, it walks you through naming it — what’s wrong and what to do — across nutrient deficiencies, pests and disease, showing you the source behind every question it asks. Where it isn’t sure enough to call something, it says so rather than guessing. It reads the temperature of the leaf itself, not just the air around it, because VPD is a number about the leaf and the leaf is not the room.
When a photo alone can’t settle it, the device doesn’t guess — it asks you a few pointed questions, showing you the source behind each one, until you have an answer you can act on. Ask it something and it answers from your device’s actual setup and readings — and when it’s telling you general growing knowledge instead, it says so, rather than dressing it up as a reading.
And it remembers the whole thing. Every grow reads back as a story rather than a spreadsheet — one photo a day you can play as a timelapse, the days it measured, and chapters made from what actually happened: what you recorded, what the questions concluded, what the device logged. It is assembled from your own record, so you can always see where any part of it came from.
It keeps a complete record of every reading and every call it makes — one you can check for yourself to see that nothing has been changed. And it does all of it on the device in your home: no account, no subscription, and your grow data is never uploaded.
When it works something out, it tells you — on the device’s own screen, not buried behind a link and not dependent on an email getting through. And it distinguishes “I looked, this is fine” from “I haven’t looked”, so silence never has to be read as good news. If it asked your lights to be on and the light never arrived at the plants, that is a fault it reports — not a gap it quietly ignores.
Adding a camera is the simple part. The expertise that reads what it sees is the hard part — and the reason Croplock exists.
Your grow is nobody’s business but yours.
Croplock is built so it can’t be otherwise — no cloud to leak, no account to breach, no feed sitting on a server with your name on it. It never releases your information to the public internet; everything stays on the device, on your own network, in your house.
A coach, not an autopilot.
Croplock’s job is to read your grow and tell you what to do about it — every day, in plain language, showing you where the answer came from. It does not take over your tent. If you want it to act, you hand it your own smart plugs from the dashboard — it pulses each one so you can see exactly what it’s holding — and you choose what it’s allowed to steer. It acts only on gear you gave it, only inside the limits you set, and it writes down every action it takes.
Built for the home grower.
You write what you see. Croplock connects it to your plant's history and tells you what to do next. No forms. No jargon. Just your plants and an expert that's always available.
- Leaf-surface temperature, air temperature and humidity, read continuously — and once the camera confirms it is looking at canopy, Croplock steers on the leaf’s VPD, not the room’s
- Light, measured where it matters — PPFD at the canopy and the daily total it adds up to — the input that actually buys you grams, and the one most growers have never measured. Hand it your light’s plug and it holds your schedule — and on any fault it fails dark, never light, because an interrupted dark period in flower is the mistake you can’t take back
- A daily look at your canopy from the camera — the same photos, kept and compared over time, on the device
- AI-guided advisories written in plain language
- Full run records — every grow, every plant, every event
- All data stays on-device. Nothing sent anywhere.
The founding price, for the first growers in — the lowest it will be. No monthly fee: the tools that bill you every month do it because their intelligence lives on their servers. Croplock’s lives in your tent.
Everything that goes into every grow.
Leaf-surface temperature, air temperature, relative humidity, and the VPD computed from them — logged permanently on your device. When the canopy fills out enough for the camera to confirm it is looking at leaf, the leaf’s own VPD is the number it steers by. Until then — and through every dark period — Croplock tells you it is working from air instead of quietly guessing. And the canopy light sensor adds the number growers argue about most and measure least: PPFD, and the daily light integral it adds up to.
Describe what you see, the way you'd describe it to a friend. Croplock connects it to your plant's history and tells you what's likely going on and what to try next.
Every grow, every plant, every observation and measurement — permanent, searchable, and yours. The record gets smarter the longer you use it.
The device runs on your local network. Your grow data never leaves your hardware — not your photos, not your records, not your readings. Your records are yours.
Across the whole grow — not just the easy part.
Your grow, read back
One frame a day, kept from the device’s own hourly captures — press play and watch the whole run go by. Underneath, the grow reads back as chapters: what you did, what it measured, what it logged. Nothing is generated for you; it’s your own record, re-read.
Seed packet to started grow
Photograph the packet, front and back — on-device OCR reads it, you confirm, and the grow is started. The photos never leave the box.
An honest harvest window
Every plant gets its own harvest window, projected from its breeder’s flower cycle — a realistic fortnight, per strain, not a fake to-the-day call. Enter the packet’s weeks once; the device keeps the arithmetic.
Dry & cure steering
At the cut, the whole device pivots to the dry room — cool, damp-ish and dark, per the published targets — and if you’ve handed it your gear, it holds the room there. Where quality is made.
A record you own
Nothing is ever edited or deleted — a correction adds a new entry and the old one stays put. It all stays on the box.
It tells you when it can’t tell.
Most grow tools have two things to say: something is wrong, or nothing is wrong. That leaves out the answer you most need to trust them — I looked, and I couldn’t tell.
Your Croplock keeps four answers apart, and it writes down which one it gave, every time:
- It read something — and the record shows whether you then confirmed it or waved it off.
- It’s watching — reading, but the conditions for any verdict aren’t there yet.
- It held back — it saw something and stayed under its own confidence floor on purpose.
- It couldn’t read the leaf — the frame didn’t support a judgement at all.
That last one is the one nobody else shows you, and it is the difference between a tool you can leave running and a tool you learn to ignore. Twelve days on this plant, the camera could not get a confident read, and it said so — instead of twelve days of a reassuring green tick.
Every read comes with the count behind it
You are never shown a finding on its own. A block says 106 reads · 6 of them read deficiency at 0.68 confidence · 3 held back · photos on 5 days — so you can see for yourself how thin or how solid it is. Six times out of a hundred and six is a different thing from six times out of eight, and you get to be the one who decides which.
And your call goes in the record too
When you look at the plant and decide the camera was wrong, that goes down as well, dated, next to what the camera said. Months later the record tells you what you decided and when — not just what a model thought. It is your grow log, and you are in it.
How these screens are put together, and why — the longer version, for the technically minded.
Schedule III is here. What it actually means for home growers.
On April 23, 2026 the DOJ moved state-licensed medical cannabis from Schedule I to Schedule III. The federal posture shifted toward mainstream legitimacy, but the state laws governing home cultivation didn't change. If your state allowed home grows last week, it allows them this week. If your state didn't, the rescheduling didn't add that right. Don't read federal rescheduling as a new license to grow at home — read it as a signal that the cultural and political environment around home cultivation continues to shift in ways that matter.
What's also true: as cannabis becomes more visible in mainstream commerce, the question of who is watching your data becomes more important, not less. Cloud-based cultivation tracking apps store everything you grow on someone else's servers. That data exists. It can be subpoenaed, breached, sold, or analyzed. Croplock takes the opposite approach: every observation, every photo, every measurement stays on the device in your home. It is built that way from the start — not a promise buried in a privacy policy, but the plain fact that there is no server for it to go to.
Be first when it launches.
Croplock is a grow expert that lives in your tent — it reads your plants with AI running on the device itself, walks you through what’s wrong and what to do, and keeps everything on the device in your home. $649, one-time, no subscription — a founding price for the first growers in. Join the waitlist and you’ll be first when it ships. Prefer to talk sooner? Email us and we’ll walk through your setup.
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Croplock supports home cultivation in jurisdictions where it is legal. This page is informational and is not legal advice. Cannabis remains regulated under federal and state law; nothing on this page modifies, supersedes, or grants any right under any of those laws. Consult your state's cultivation rules before starting a grow.