Beat the drought. Save irrigation water. Grow healthier crops.
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.
For Growers & Cultivators
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
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
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 MoreJust connect to the existing LoRaWAN and Sigfox networks.
No infrastructure investment required. Low annual subscription fees. Scales seamlessly from one sensor to thousands.
Plug & Play. Installing a Tentacles IoT sensor takes less than 5 minutes. No tools, no cables, no expertise required.
View and analyze all sensor data on the MyTentacles web platform. Connect to third-party tools and automations via our open API.
Measures moisture content at 3 depth levels and temperature — delivering precise VWC readings across the full substrate profile.
Personal and fast support from our team in Rotterdam. Always available to answer your questions — no ticket queues.
All our sensors are used across horticulture, public green and irrigation. Engineered by a dedicated team from Rotterdam. Designed for professionals who demand precision.
Soil Conditions Sensor for Trees
Built for trees, parks and urban green. A single-electrode probe reads VWC, temperature and light at root level — so you irrigate on root-zone data, not on the calendar.
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Growing Media Conditions Sensor
Catch dry-outs before plants show stress. Volumetric water content at three depths plus substrate temperature — wired into LoRaWAN or Sigfox straight out of the box.
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Advanced Growing Media Sensor
Four-electrode resolution for deeper substrate profiling. Profile moisture across three depths and temperature in slabs, coco and peat — pinpoint the dry layer before the crop notices.
More InfoMyTentacles gives you a complete view of every sensor, every reading, every insight — from anywhere, on any device.
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.
“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.”
Multi-Network Connectivity
Global Distribution
Industrial sensor platform — integration partner for plant nurseries.
All in flowering concepts for the public space. They use our sensors to provide guarantee on the success of their flowering concepts.
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.
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.
Questions about a deployment, a pilot or pricing? Our team in Rotterdam replies within one business day.
