SOLYX 14 Substrate Sensor
SOLYX 14 Substrate Sensor
★★★★☆ 4.6 on Trustpilot (25 reviews)
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Estimated delivery: Aug 18 - Aug 22
METER Group SOLYX 14. Root-zone water content, EC and temperature, for the Grow Sensor PRO.
A third-party SDI-12 substrate probe using METER CDX (complex dielectric) measurement. It reads volumetric water content, bulk EC, pore water EC and temperature in soil and soilless media. Plug it into the Grow Sensor PRO through the RJ12 connector block. One probe at a time.
Buy it on its own if you already have a Grow Sensor. Or choose it as the probe in the complete system instead of SubSense.
Measures
- Volumetric water content (VWC)
- Bulk electrical conductivity and pore water EC
- Substrate temperature
Tech specs
- Output: SDI-12 or DDI-serial
- VWC: 0.00–0.72 m³/m³ mineral calibration, ±0.03 generic / ±0.01 medium-specific
- Bulk EC: 0–20 dS/m
- Temperature: −40 to +60 °C, ±0.3 °C from 0 to 60 °C
- Needles: 5.5 cm stainless steel
- Body: 8.9 × 2.5 × 7.5 cm, IP65 / IP67
- Cable: 5 m standard
- Power: 4.0–15.0 V DC
Requires a Grow Sensor PRO and the RJ12 connector block (included in the complete system, sold separately otherwise).
Kan de beschikbaarheid voor ophalen niet laden
Import fees covered up to £100
Import fees covered up to £100
Ordering from abroad? We’ll cover up to £100 / $125 / €115 in import fees.
If you’re charged, just send us the receipt and we’ll refund you.
We currently ship to UK, all of the EU, US, Canada, Australia and New Zealand.
Any questions on click chat below.
Is this PRO right for me?
Is this PRO right for me?
The Grow Sensor PRO is for you if:
- You want real canopy-level data, not assumptions
- You grow indoors and care about yield, quality, and consistency
- You’re actively trying to improve each cycle
- You’re willing to make decisions based on data
This may not be for you if:
- You grow outdoors only
- You’re looking for the cheapest option available
- You only want basic temperature and humidity readings
- You don’t plan to adjust your environment based on insights
Product description
Product description
Step in to the 21st century with the Grow Sensor. The precision monitor for your grow room. All the sensors you need to grow the best plants in one easy to use package.
Access the FREE state of the art Grow Sensor app on IOS and Android and take back control of your grow room.
We believe in open ecosystem tech, because most grow tech is a closed system, and we think growers deserve better.
Built by the community for the community! ✊
Measure:
- Temperature
- Relative humidity
- CO2
- ePPFD (Extended)
- ePAR (Extended light spectrum)
- eDLI (Extended daily light integral)
- Leaf surface temperature (IR probe)
- True leaf VPD!
- And ambient VPD
- Leaf/ambiant temp difference
- Substrate EC, Water content and temperature with a:
- The Grow SubSense, Teros 11 & 12, Growlink Terralink, Acclima TDR-310W and TDR-315N, the Wet-150 SDI12 substrate probes. (Sold separately).
- Dew point
- Pressure
- And more...
Ships with:
- Free substrate probe connector.
Long battery life (between 2 weeks and 3 months depending on chosen settings) - Or power your device by USB.
- Wifi enabled (2.4ghz)
- Offline data logging (if your internet fails)
- Tripod mountable
- Every sensor is factory calibrated before shipping to assure accuracy.
- Compact size (suitable for micro grows)
- Home Assistant compatibility!
- API access
What's in the box
What's in the box
- The Grow Sensor.
- 5 meter long USB power cable
- Reflective high strength hanging cord and carabiner
- Free substrate connector block. Compatible with a range of SDI-12 substrate probes.
Tech spec
Tech spec
- Max ambient temperature: 58°C (136°F)
- Min ambient temperature: -9°C (15.8°F)
- Temperature sensor accuracy: ±0.3°C (1°F)
- Max humidity: 95%
- Min humidity: 10%
- Humidity accuracy: ±0.3%
- Max leaf temperature: 100°C (212°F)
- Min leaf temperature: -30°C (-22°F)
- Leaf temperature accuracy: ±0.5°C (1°F)
CO₂
- Measurement range: 400 ppm to 5000 ppm
- Accuracy: ±40 ppm + 5%
DLI
- DLI accuracy: ±3%
Spectral sensor
- Measurement range: 380 to 910 nm
- ePPFD (ePAR) range: 400 to 750 nm
- Blue spectrum range: 400 to 499 nm
- Green spectrum range: 500 to 599 nm
- Red spectrum range: 600 to 699 nm
- Infrared spectrum range: 700 to 799 nm
- Wavelength accuracy: Typically ±2 nm per channel
Other
- SDI-12 compatibility: Yes for 1 substrate probe.
- Home Assistant compatibility: In beta
- Offline data logging: Yes
- Factory calibrated: Yes
Power & connectivity
- Input power: 5 to 12V DC
- Battery life: 2 weeks to 3 months (depending on frequency of readings taken)
- WiFi range: 200 meters (range depends on many variables)
- WiFi band: 2.4 GHz
Physical & environmental
- Attachment points: Top-mounted hanging clip and bottom-mounted tripod mount
- Location: Indoor and greenhouse
- Waterproofing: Splash resistant
App Minimum Requirements
- Android: Android 9
- iOS: iOS 14
Services
- 30 day satisfaction guarantee
- 1 year warranty
Deel dit product
Testimonials
Tad Hussy (Kisorganics)
“After a couple months of using the Grow Sensor, I’m impressed by how much clarity it brings to my environmental monitoring. It tracks the metrics that actually matter and delivers them cleanly to my phone. The alert system is well-designed and dependable, and setup took only a few minutes. It’s a practical, data-rich tool for anyone who cares about repeatable results.”
Chad Westport (USA)
"Fantastic product! Easy set-up, easy to use, and easy to understand data. This device can take any home grower to the next level by allowing them to fully dial in their grow environment. This level of insight is amazing!"
True Canna Cast Podcast
“Absolutely love this device. So much information to dial in the garden, it really is a wonderful piece of kit. Feels like having a little digital apprentice watching over the garden. One of the best devices I’ve had to upgrade my grow life and level up in a long time.”
Nate Lipton
"The user-friendly tool that helps professional growers sleep well at night."
Ian collins (UK)
"Best Sensor on the market! I have had dozens of loggers and there all either very bad are far to much for what I needed. I have dyslexia and adhd and normally ditch products when I get frustrated. But with grow sensor I attached it to WiFi easily and set all my alarms after a few minutes. Great product."
Ben (NZ)
"No BS the only sensor you need. The ultimate all-in-one sensor for your grow. Growsensor has nailed it. Crafted by genuine growers for growers. I'll be equipping every room and tent with this innovative, user-friendly solution."
Nichilas Ezzo (US)
"Excellent device! The Grow Sensor is an essential piece to the garden. I've never second guessed readings on the device. Accessing all different metrics from one application and a single device is a game changer to cultivation."
Christoph Herzog (Germany)
"I have to say, it’s an incredibly impressive device. From the moment I started using it, I was impressed by the variety of features it offers. The sensor provides accurate measurements for everything."
Ryan (USA)
"Great product in a tight form factor. Love how easy the application is to use from a UI perspective. The end user was clearly at the forefront of the thought process worth respect to the design of everything. This product is a dream for grower that loves the extra advantage the data provides."
Because data is king. Read the room.
Small size. Powerful features.
Grow the healthiest plants possible. Measure eDLI, ePAR, ePPFD, Leaf surface temperature and leaf VPD live.
Did we mention we are compatible with Home Assitant?
Maximise your yield. Increase product quality.
Join top growers across the globe who are using the Grow Sensor to grow the best plants.
Master your environment
Data is king. Discover all you need to do to dial in your grow setup.
Increase product quality
Hit new heights with your yield and product quality with crop steering.
Save on electricity
Unlock the missing information you need to to sop waisting money.
Stay safe
Get alerts and set limits. Staying safe is the name of the game.
Testimonials
Peter Walsh (UK)
"This thing is dope This thing is dope, It isn't cheap but it does a lot for the money, so it justifies itself quickly. Looking forward to the irrigation box thing they are working on. If you need anything ask for Theo."
Jake Kimmel (USA)
"Worth the money The grow sensor is a top of the line sensor that has everything you need in 1. The sensor is very accurate and can be used in rooms larger than your average home grow!""
Edd UK (UK)
"Why has it taken so long for a company Why has it taken so long for a company to get this right? Worth the wait, just. I was beginning to doubt the product would ever become available."
Dominic
"Awesome product. The info it provides allows u to supercharge your grow, getting alerts when things aren't right allows me to correct things before they become big problems. Now have some of the healthiest trees I've ever had(and will be able to repeat). Very helpful team for any questions too."
Mike Richiusa (Germany)
"I like the GrowSensor Pro and the subsense very much! The shipping was also very good. I’m looking forward to the next features :-)"
Mike (Canadian Grower)
"I'm glad there's finally a grow sensor on the market that can accurately measure leaf VPD. I feel like this is a game changer and has definitely helped me keep things dialled in. 10/10"
Grow Sensor FAQs
Do you link up to Home Assistant?
Do you link up to Home Assistant?
Yes! The Grow Sensor now integrates with Home Assistant. This means you can connect your sensor to your smart growing environment and create automations or monitor conditions alongside other devices. We’re strong advocates for an open ecosystem and committed to supporting broad compatibility with third-party products and platforms.
The Grow Sensor PRO is the missing piece for your Home Assistant grow-room. Learn how to integrate it: Build a home assistant grow room with theGrow Sensor PRO.
Can I pay with cypto currency?
Can I pay with cypto currency?
Yup you sure can! Just select this payment option at checkout.
Does the Grow Sensor detect light leaks?
Does the Grow Sensor detect light leaks?
Yes! The Grow Sensor has a light sensor that tracks light leaks 24/7. You can set alerts to stay informed via The Grow App.
Does the Grow Sensor detect light failure during the daytime?
Does the Grow Sensor detect light failure during the daytime?
Absolutely! If your lights turn off during the day, you’ll be the first to know.
Do I need a computer to use the Grow Sensor?
Do I need a computer to use the Grow Sensor?
No, you can access The Grow App on your Android or iOS device. A browser version of the app for desktops is also in development.
Can I monitor my grow remotely?
Can I monitor my grow remotely?
Yes! With The Grow App, you can monitor your grow from anywhere in the world, as long as your sensor is connected to Wi-Fi.
Does the Grow Sensor log data without an internet connection?
Does the Grow Sensor log data without an internet connection?
It sure does! If your internet goes down, all your data will continue to log in the background, ensuring no gaps in your records.
How secure is my data?
How secure is my data?
Your data is encrypted and securely stored. We never share or sell your information, and you have full control over your grow data.
Will I be able to control devices with the Grow Sensor?
Will I be able to control devices with the Grow Sensor?
Yes, but not yet! Soon, you’ll be able to use the Grow Sensor with Home Assistant and MODBUS to control devices. In the long term, we plan to produce our own controller.
Does the Grow Sensor require a hub to work?
Does the Grow Sensor require a hub to work?
Nope! As long as you’ve got Wi-Fi, you’re good to go.
How easy is it to set up the Grow Sensor?
How easy is it to set up the Grow Sensor?
The Grow Sensor is plug-and-play. Simply connect it to your Wi-Fi or use Bluetooth, and you’ll be up and running in minutes.
How long is the cable for direct power?
How long is the cable for direct power?
5 meters. If you need a longer cable, let us know.
How far does the Wi-Fi reach?
How far does the Wi-Fi reach?
Many variables contribute to this, such as wall thickness and router placement. The range is roughly 200 meters, depending on your setup.
Can you set limits and alerts for all sensor data?
Can you set limits and alerts for all sensor data?
Yes! You can set limits and alerts for everything the Grow Sensor measures. High and low thresholds, as well as dangerously high or low limits, are available. All alerts are sent as push notifications to your device.
How accurate are the measurements?
How accurate are the measurements?
Each Grow Sensor undergoes rigorous calibration and testing to ensure it delivers industry-leading accuracy across all metrics.
How long does the battery last?
How long does the battery last?
Between 2 weeks and 3 months, depending on your chosen settings. A feature allowing you to turn off sensors and reduce the frequency of readings to extend battery life is in development.
Can I link multiple sensors in the same room?
Can I link multiple sensors in the same room?
Not yet, but this is on our feature list. You’ll soon be able to group multiple sensors in one Grow to gain deeper insights from your data.
What happens if my Grow Sensor stops working?
What happens if my Grow Sensor stops working?
Our Grow Sensor is covered by an 18-month warranty for manufacturing defects and hardware failures. Our support team is also available to assist with any issues.
Where do you ship to?
Where do you ship to?
Currently we ship to the UK, EU, US and Canada. If you want a Grow Sensor and live outside of these areas, please contact us. We'll be adding more countries soon.
Is the Grow Sensor calibrated before shipping?
Is the Grow Sensor calibrated before shipping?
Yes! Every Grow Sensor undergoes extensive calibration to ensure you can trust your device.
Are there any subscription fees?
Are there any subscription fees?
The Grow App is free to use with your Grow Sensor. Premium features, such as AI insights, may require a subscription in the future.
Do you offer customer support?
Do you offer customer support?
Yes! Our friendly support team is available via email, chat, or phone for any quesitons you have. You’ll also find helpful guides and troubleshooting resources on our website.
Are there any import duties or tariffs to pay?
Are there any import duties or tariffs to pay?
Import costs are estimated and may vary slightly depending on your country’s regulations and courier processing. All duties, taxes, and fees are typically collected by the courier prior to or at delivery. Information correct as of 28th May 2025.
Australia: AUD $75 - Includes 10% GST on the sensor price.
Canada: CAD $80–130 - Includes 5–15% GST/HST (varies by province) and a customs processing fee (CAD $10–15).
European Union: €145–190 - Includes 20–25% VAT and a customs handling fee (€10–20), depending on your country.
New Zealand: NZD $135 - Includes 15% GST and an import entry fee (NZD $60).
United States: $75 USD - Includes a 10% import tariff (as of 2025)
United Kingdom: None - All taxes and duties are included in the listed price. Nothing more to pay.
Do you have a product Warranty?
Do you have a product Warranty?
Yea we do! Its a bit dry to read though:
This Limited Warranty applies to physical goods, and only for physical goods, purchased from Grow Sensors LTD (the "Physical Goods").
What does this limited warranty cover?
This Limited Warranty covers any defects in material or workmanship under normal use during the Warranty Period.
During the Warranty Period, Grow Sensors LTD will repair or replace, at no charge, products or parts of a product that proves defective because of improper material or workmanship, under normal use and maintenance.
What will we do to correct problems?
Gros Sensors LTD will either repair the Product at no charge, using new or refurbished replacement parts or replace the product.
How long does the coverage last?
The Warranty Period for Physical Goods purchased from Grow Sensors LTD is 365 days from the date of purchase.
A replacement Physical Good or part assumes the remaining warranty of the original Physical Good or 365 days from the date of replacement or repair, whichever is longer.
What does this limited warranty not cover?
This Limited Warranty does not cover any problem that is caused by:
● conditions, malfunctions or damage not resulting from defects in material or workmanship
What do you have to do?
To obtain warranty service, you must first contact us to determine the problem and the most appropriate solution for you.
Do you have a satisfaction Guarantee?
Do you have a satisfaction Guarantee?
Yup, read that here.
We are confident in the quality of our products and firmly believe that you will be delighted with your purchase.
However, we understand that sometimes things may not go as planned.
That's why we offer our 30-day money-back guarantee, so there's no need to worry.
Simply send us an email at hi@growsensor.co, and we'll take care of everything for you.
We'll promptly process a refund for the full purchase price, which will be promptly credited back to your original payment method.
Your satisfaction is our utmost priority, and we'll ensure that you're a happy customer!
Get the Grow Sensor now
This is a limited pre-production run of just 100 sensors. Don’t miss your chance to grab the Grow Sensor and be among the first to experience the future of precision growing!
