Built by growers, for growers - and powered by precision.
At Grow Sensor, we believe better growing starts with better data.
That’s why we built the Grow Sensor PRO, a precision monitoring device that helps indoor cultivators make smarter, faster, and more profitable decisions.
Designed for everything from home grow tents to large-scale commercial setups, the Grow Sensor PRO helps you fine-tune ambient VPD leaf VPD, PPFD, DLI, CO₂, RH, and more - so your plants get exactly what they need, when they need it.
Backed by decades of hands-on cultivation, UX design expertise, and a relentless focus on user-friendly technology, our goal is simple:
To help you grow the best plants possible, with fewer inputs and less waste.
Why Grow Sensor?
Designed by real growers
We’re not just engineers or marketers - we grow.
Our lead cultivation expert, Theo Gardner, brings over 20 years of experience in crop steering, coco cultivation, and controlled environment agriculture.
Intuitive and powerful app
Created by UX veteran Tom Starley, the Grow App is built for simplicity. See your environmental data at a glance, set alerts, and optimise your grow without guesswork.
Grow smarter, waste less
We're driven by sustainability. Grow Sensor helps reduce unnecessary water, electricity, and nutrient use, better for your plants and the planet.
Meet the Team
Theo Gardner
Indoor cultivation specialist
With over two decades of hands-on experience, Theo leads all things agronomy at Grow Sensor.
He’s helped thousands of growers optimise their environments and has authored expert-level guides on crop steering, VPD, and environmental control.
Tom Starley
Founder & UX designer
A passionate home gardener and user experience expert, Tom has designed intuitive digital products for top global brands.
At Grow Sensor, he’s focused on making professional-grade tech accessible and easy to use for every grower.
Lucy Starley
Founder, marketing & SEO
Lucy drives Grow Sensor’s marketing strategy and content engine.
With a deep background in SEO and digital storytelling, she ensures that growers can find the knowledge and tools they need online.
David Rees
Founder, data scientist & chemist
Dave Rees is a data scientist and chemist driving the technical development of Grow Sensor.
He builds the backend, database, and server infrastructure and integrates hardware and software to help users optimise their growing environments with reliable, data-driven insights.
Our mission
To empower growers, hobbyists and professionals alike, with the tools, knowledge, and data they need to grow better plants, cleaner, greener, and more effectively.
Featured articles
Want to see the Grow Sensor PRO in action?
Check out some of our most-read articles:
- Is Grow Sensor Worth It? See ROI For Yourself
- Grow Sensor vs Pulse: Real-World Accuracy Compared
- The True Cost of Inaccurate Grow Data
Join us on the Journey
Whether you're just starting out or already growing at scale, we’re here to help you level up.
Because when your environment is dialled in, everything grows better.
Get in touch or try the Grow Sensor PRO
