The precision grow room monitor

Grow the best plants with the Grow Sensor. Uncover grow room problems fast and access your data everywhere.
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The Grow Sensor - the smart grow room monitor.

"Grow Sensor will be that user-friendly tool that helps professional growers sleep well at night."

Nate Lipton  - SEO at GrowersHouse and CannaCribs
Nate Lipton
CEO at GrowersHouse & CannaCribs
Green Grow logo

Your grow room is 10°C over your temperature limit. 38°C!

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New feature

Is your grow room out of control?

Creating the perfect grow room environment for every grow is a constant, never ending challenge.
The top of a healthy tomato plant
Features

A bad environment means low quality.

Meaning less profit in your pocket and more stress in your head. That’s not a good combo.
Dashboard

Don’t risk it all.

You invest a lot into what you love. Don’t let it all go to pot because you weren't watching your environment.
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The Grow Sensor swinging by the green cord it's suspended on
2 people in a grow room looking at the grow sensor.
Features

Master your grow environment.

A happy grow room is a joy to look after. With less reactive jobs on your list, you'll have more time to do the stuff you love.
The top of a healthy tomato plant
Features

Save on electricity and running costs.

Growing indoors isn't cheap. Unlock the missing information you need to control costs and spend less on electricity.
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Features

Stay safe.

Protect your grow room. Get alerts, set limits and identify trends. Staying safe is the name of the game and we’ve got your back.
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The Grow Sensor swinging by the green cord it's suspended on
Remote grow room monitoring

Meet the Grow Sensor

Powerful, packed with goodies and built to last. The Grow Sensor is the brain of your indoor cultivation operation.

Temperature and humidity

Optimise growing conditions with super accurate temperature and humidity monitoring.

CO2 sensor

Boost plant growth with CO2 grow room monitoring. Ideal for plant and mushroom cultivation.

PPF light meter

Measure your light intensity continuously with the top-mounted PPF/PPFD sensor.

Full spectrum PAR sensor

Bring out the best in your plants. View the full PAR spectrum, and some! 350 to 900nm. With no missing bands.

LST sensor

Grow healthy plants. Measure leaf surface temperature continuously with the bottom-mounted infrared sensor.

Links up with our soil probe

Plug the Grow soil probe into the Grow Sensor to measure EC, soil moisture, dry backs and soil temperature.

Super high accuracy

All of our sensors have been chosen to be highly accurate whilst also extending battery life.

Innovative aerated case

Designed to passively move air and give the most accurate indoor readings.
iPhone mockup

Long battery life

Choose what you you want to measure, when. Save power, extend battery life.

Measure VPD

Grow the healthiest plants possible. Measure vapour pressure deficit out of the box.

Measure dew point

Prevent condensation and mould growth. Measure dew point and get notifications.

Measure DLI

Save on electricity by measuring your daily light integral.

Wi-Fi and Bluetooth

Ultra stable Wi-Fi connection for longer distance data collection.

Offline data collection

No Wi-Fi? No problem! The Grow Sensor continues to log-data when you’re offline.

Built to last

Robust with a tough design. Made to withstand the wildest grow room.

Adjustable hanging rig

Easily adjust the hight of the sensor as plants grow with our adjustable hanging cable and rig.

Tripod mount compatible

Mount the Grow Sensor on a standard camera tripod for added flexibility.

Get early access now

Measure your environment like a pro.
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The Grow App on an iPhone showing an overview of all current grows
Read the room

Introducing the Grow app

Easy to use, and built to work perfectly on your mobile device - no exceptions.
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Highly usable graphs

Drill down into your data with graphs that you can really use on your mobile device.

Alerts and limits

Set notifications on data. If your temperature is too high, you'll be the first to know.

Live mode

Need to check something fast? Turn on live mode for super fast data collection.

View data trends

Always know if your grow room is stable. View environmental trends at a glance.

Day and night photoperiod

Set limits on day and night photoperiods. Look at historical limit changes on your graphs.

Dark-mode app

Easy on the eyes first thing in the morning and last thing at night.
iPhone mockup

Grow diary

Collect data and leave notes on your grow. Continually improve every harvest.

Emergency alerts

Set emergency notifications and react fast. If your lights fail, or there’s a spike in temperature you’ll know.

Dashboard view

Get a top level overview of all of your grows in one list.

Power saving mode

Make your sensor last longer by choosing what to measure and when.

Set grow start & end dates

Set the grow start, end and flower date. Easily reveiw your past grows to replicate the growing conditions.

Encrypted data

Safety comes first. Your data is encrypted so you stay safe.

Get early access to the app now

Works seamlessly on your Apple or Android device.
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Built for crop steering

Plug-in a Soil sensor

Take your results to the next level with dry backs and EC monitoring. The future of fertigation is here.
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Measure dry backs

Fertigate at the right time, then sit back and watch the magic happen.

Measure EC

Precisely measure the electrical conductivity of your growing medium.

Measure soil temperature

Soil too cold? Well now you’ve got the data so you can act!
iPhone mockup

High accuracy

A highly accurate, industry leading soil sensor that you can trust.

Made for coco, soil and more

Whether you grow in coco, soil, rockwool, mixed media or water, we’ve got your back.

Highly advanced

A high tech sensor in a little package that measures directly in the rootzone.

Get early access to the app now

Crop steer like a pro. Take your grow to the next level.
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Grow desktop app

The Grow desktop app is on the way

View all of your data in detail on Mac and PC.
The Grow desktop application
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Join the 2000+ growers already inline for early access.

Don't miss out.
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Deep dive into the details

Learn more about the Grow Sensor’s suite of features and benefits.
Product update: Alpha testing is underway.
Grow app and sensor in alpha testing, beta up next. We are making progress!
View more
How a cannabis soil moisture meter can maximise your yield
Elevate cannabis cultivation with precision soil moisture management.
View more
The ultimate PPFD meter to optimise your grow room
Unlock optimal plant growth with the ultimate PPFD meter for your grow room.
View more
Optimise your grow with the best temp and humidity monitor
Maximise your grow with the ultimate temp & humidity monitor.
View more
What is a grow room sensor & why do I need one?
Discover the essentials of grow room sensors - a must-read for all indoor growers!
View more
Business growers

Pro features coming soon

A powerful set of features tested with businesses are around the corner.

Multiple sensors in a room

Add multiple sensors in room to get a deeper understanding of larger grow rooms or areas.

Team accounts

Add all of your team to your account. Share the data and comment on graphs.

AI feedback

Take the mental gymnastics out of optimising you grow space. Get actionable insights to make meaningful change all year long.
Two Grow Sensors to show that multiple sensors in a room is a pro feature coming soon

Get your free VPD & environment calculator

Perfect your environment.
Stay in the VPD sweet spot.
Ideal temperature ranges for day & night.
Prevent mould.
Induce colour.
Grow the best plants.
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Screenshot of our FREE VPD chart and environmental calender
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Support

Frequently asked questions

Everything you need to know about the Grow Sensor.
When will the Grow Sensor be available?
We hope to ship our first smart grow room monitors in Q3 2024. Click any button on the site to join the waiting list and get notified of exciting developments!
Is your sensor actually accurate?
The short answer is it has to be, or we won’t launch the product. Over the last year, the price of sensors has reduced, and the tech advanced dramatically, but this doesn’t mean all the sensors you can buy today are accurate. Testing is key, and currently, we are testing a large range of sensors thoroughly for a range of situations and uses. Do accurate sensor components exist now? Yup! But some are more expensive than others. Our approach is to focus on the sensors that work so you can rely on the data, always. Data first features second. Aside from the sensors, we are working extensively on creating a passively aerated case that allows for consistent and instant air movement for fast and accurate feedback from the immediate environment. Additionally, we will be sending the units for strict independent testing to confirm the above. We will make all test results public. Our team consists of professionals and perfectionists. If it isn’t reliable, it’s not for sale. We are not here to release another cheap, inaccurate iOT sensor or environmental monitoring solution that promises the world but just gathers inaccurate data that can't be trusted or acted on. If you have any specific questions reach out to us at hi@growsensor.co
Where is the Grow Sensor made?
We are still in the process of finalising manufacturers, but we plan for the Grow Sensor to be made in the UK.
Will you ship outside the UK?
Yup! If you need a grow room environment monitor and you’re not based in the UK, don’t worry. The Grow Sensor will ship worldwide (subject to local/import taxes.) We are already in discussions with distributors in Europe and the US.
How safe is my data?
The safety of your data is our top priority. All information is encrypted with bank-level security ensuring anonymity. We believe privacy rights matter, and that will never change.
Does the Grow Sensor have a guarantee?
Yup, it sure does! If you're not 100% happy with your Grow Sensor you can return it to us within 60 days for a full refund (excluding shipping costs.) Just make sure to send it back in its original packaging with proof of purchase.
Does the Grow Sensor have a warranty?
Yup, the Grow Sensor has a best-in-class 18-month warranty covering any manufacturing defects and/or hardware failures. What's not covered under warranty: accidental damage or unauthorised modifications.
Are you a new company?
New product, yes. New company, yes, but we’re not a new team. We've been in the tech industry for 20+ years and the electrical industry for 40+. We are a team of 9 who have a proven track record making digital and physical products. We are in this for the long run.
Can I test the Grow Sensor for free?
You certainly can if you plan to review the Grow Sensor. Drop us an email to hi@growsensor.co, and we will hook you up with a device to review.
Can I preorder the Grow Sensor?
If you're interested in pre-ordering now, drop us an email to: hi@growsensor.co. We will also add a pre-order service to our online shop in the coming months so check back in the future.
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Got a question?

Can’t find the answer you’re looking for? Please chat to our friendly team.

"Grow Sensor will be that user-friendly tool that helps professional growers sleep well at night."

Nate Lipton  - SEO at GrowersHouse and CannaCribs
Nate Lipton
CEO at GrowersHouse & CannaCribs
Sign up to our beta testing program. Be in with a chance of testing the Grow Sensor for free.
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Our blog

Latest blog posts

Get the latest grow news, tips and tricks here.
A cannabis grow room setup up for the optimal PPFD for veg.
Indoor growing

The optimal PPFD for veg: Your ultimate guide

Guide to optimal PPFD for vegetative cannabis growth.
User avatar
Drew Cano
11 Jan 2022
5 min read
A grower who has successfully targeted the right VPD for veg. Their target VPD for veg is on point and the plants look healthy.
Indoor growing

Uncover your target VPD for veg and elevate your grow

Exploring the ideal VPD for cannabis veg stage growth.
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Drew Cano
11 Jan 2022
5 min read
A healthy cannabis plant grown by someone using a PPFD chart to dial in their environment
Indoor growing

Use the right PPFD chart for your style of growing

Boost indoor gardening with PPFD charts for healthier plants and better yield.
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Drew Cano
11 Jan 2022
5 min read
A grower holding the Apogee par meter.
Indoor growing

Apogee par meter vs Grow Sensor, a comparison

Comparing PAR sensors: Apogee vs. Grow Sensor.
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Drew Cano
11 Jan 2022
5 min read
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Drew Cano
11 Jan 2022
5 min read
A grower measuring the leaf surface temperature of a cannabis plant using an Infrared thermometer.
Indoor growing

Why is leaf surface temperature important?

Learn why leaf surface temperature is key to healthy plant growth.
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Drew Cano
11 Jan 2022
5 min read
A healthy cannabis seedling under the correct PPFD.
Cannabis

What’s the best PPFD for seedlings? The cannabis edition

Optimize PPFD levels for your cannabis seedlings to maximise growth.
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Drew Cano
11 Jan 2022
5 min read
A man checks the temperature of his grow room.
Indoor growing

What happens if your grow room is too hot?

High Temperatures' Impact on Indoor Plant Growth.
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Drew Cano
11 Jan 2022
5 min read