Horticulture
Public Green
Irrigation
Soil Conditions Sensor for Trees
XT-TREE
Designed for trees, parks and urban green. Measures soil moisture and temperature in open soil and tree pits. Used in horticulture, public green and irrigation.
More InfoPrecision Data. Healthier Growth.
WirelessMoistureSensors
Accurately measure moisture levels in growing substrate and soil. Plug & Play wireless IoT sensors — no wires, no gateways required. Built for horticulture and public green professionals since 2016.
LoRa & Sigfox Multi Radio Network
3 Moisture Levels Per Sensor
Up to 15 Year Battery
Industries
Industries We Serve
For Growers & Cultivators
Horticulture
Substrate moisture sensing for professional growing media. Compatible with rock wool, coco, peat and more. Trusted by greenhouse growers and nurseries across Europe.
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Flowering Concepts For Cities
Public Space
Bring colour and life to streets, squares and public spaces. Wireless soil moisture sensors keep flower towers, planters and urban greenery thriving with minimal water waste.
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Smart Irrigation Control
Plant Irrigation
Precision soil moisture sensing for automated plant irrigation. Enables demand-driven watering for gardens, parks and commercial landscapes — saving water while keeping plants healthy.
Learn MoreWhy Tentacles IoT
One Product.
One Installation.
One Wireless Product
Just connect to the existing LoRaWAN and Sigfox networks.
Cost Effective
No infrastructure investment required. Low annual subscription fees. Scales seamlessly from one sensor to thousands.
Fast Installation
Plug & Play. Installing a Tentacles IoT sensor takes less than 5 minutes. No tools, no cables, no expertise required.
Web Platform
View and analyze all sensor data on the MyTentacles web platform. Connect to third-party tools and automations via our open API.
Accurate Data
Measures moisture content at 3 depth levels and temperature — delivering precise VWC readings across the full substrate profile.
5 Star Service
Personal and fast support from our team in Rotterdam. Always available to answer your questions — no ticket queues.
Products
Robust Technology
Across Three Industries
All our sensors are used across horticulture, public green and irrigation. Engineered by a dedicated team from Rotterdam. Designed for professionals who demand precision.
Horticulture
Public Green
Irrigation
Growing Media Conditions Sensor
3XT-M
Measures moisture at 3 depth levels (VWC) and temperature. Used in horticulture, public green and irrigation. Compatible with all types of growing media and growing systems.
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Horticulture
Public Green
Irrigation
Advanced Growing Media Sensor
4XT-M
Four-electrode design for deeper substrate profiling. Measures moisture at 3 depth levels (VWC) and temperature. Used in horticulture, public green and irrigation.
More InfoThe Platform
All Your Data.
One Dashboard.
Total Control.
MyTentacles gives you a complete view of every sensor, every reading, every insight — from anywhere, on any device.
- Live Sensor Data
- Custom Alerts
- Open API
- Multi-Site
Since 2016
Continually Pushing
The Technology
Since 2016, we have been at the forefront of wireless moisture monitoring. Every sensor, every firmware update, every line of platform code — engineered in Rotterdam by a dedicated team focused on one mission: better data for better growing decisions.
We don't stop at "good enough." We continually iterate, test in the field, and ship improvements that make our sensors more reliable, more accurate, and longer-lasting — every single year.
What Our Customers Say
“The Tentacles IoT sensors perfectly fit our product range and customer service. They are robust, reliable and easy to install. The MyTentacles platform provides an excellent overview of all sensor data and signals.”
“Tentacles IoT has the perfect solution for measuring substrate moisture levels. The sensors work perfectly and the data platform is user-friendly. We recommend Tentacles IoT to all our customers.”
Trusted Partners
Multi-Network Connectivity
Global Distribution
30MHz
Industrial sensor platform — integration partner for plant nurseries.
Horticulture
flower your place
All in flowering concepts for the public space. They use our sensors to provide guarantee on the success of their flowering concepts.
Public Green
Wildr
Wildr exists to give nature a full place in the built environment. By making nature leading in design and realisation, they contribute to cities that are liveable, resilient and future-proof. Our sensors support their precious green roofs and newly planted green.
Public Green
Irrigation
Log & Solve
Log & Solve is a Dutch data-logging and substrate analytics brand from Klasmann-Deilmann. They integrate our sensors into their growing-media insights, giving professional growers continuous visibility on substrate behaviour.
Horticulture
Our Vision
Data-Driven
Growing
The world's growing systems run on intuition, habits and rough rules of thumb. We believe they should run on data.
Tentacles IoT exists to make professional-grade moisture sensing effortless, wireless and accessible — so every grower, every green-keeper and every irrigation engineer can make better decisions, save water and grow healthier plants.
Get In Touch
Let's Talk
Questions about a deployment, a pilot or pricing? Our team in Rotterdam replies within one business day.