{"id":287764,"date":"2020-06-08T16:17:35","date_gmt":"2020-06-08T14:17:35","guid":{"rendered":"https:\/\/preprod.weenat.com\/sensors\/sonde-tensiometrique\/"},"modified":"2026-07-24T11:59:00","modified_gmt":"2026-07-24T09:59:00","slug":"tensiometer","status":"publish","type":"page","link":"https:\/\/preprod.weenat.com\/en\/sensors\/tensiometer\/","title":{"rendered":"EN – Sonde tensiom\u00e9trique"},"content":{"rendered":"\n
Weenat<\/a><\/span><\/span><\/div><\/div><\/div><\/div>
\"Weenat<\/span><\/div><\/div>

A tensiometric probe<\/span> to irrigate your crops when they really need it<\/span><\/h1>\n<\/div><\/div>

No more \"wet finger\" irrigation. Thanks to Weenat tensiometric probes, you monitor the water status and soil temperature in real time.<\/p>\n

Result? You know exactly when to start or stop irrigation<\/strong>. You save water. And you make better decisions.<\/strong><\/p>\n<\/div><\/div>

Free quote request with no obligation<\/em><\/p>\n<\/div><\/div>

\n \n \"REQUEST\n <\/a>\n<\/div><\/div><\/div><\/div><\/div>
<\/div><\/div>
\"Weenat<\/span><\/div><\/div>

ROBUST. PRECISE. MAINTAINABLE.<\/p>\n<\/div><\/div>

The reference probe for managing your irrigation<\/h2>\n<\/div><\/div>

Whether it rains, freezes, or there's drought, your Weenat tensiometers are out there. Busy measuring what's happening in your soils. So we wanted sturdy materials. For precision that lasts, even after years.<\/p>\n<\/div><\/div>

Tensiometer measurements<\/h3>

Three depths<\/h4>\n

The probes are sold in packs of 6 to measure soil water status at different depths. They come in 3 sizes: 30cm | 60cm | 90cm.<\/p>\n\n\n\n\n\n
Measurement<\/strong><\/td>\n\u00a0Unit<\/strong><\/td>\nMeasurement principle<\/strong><\/td>\nMeasurement range<\/strong><\/td>\n<\/tr>\n
\u00a0Tensiometry<\/strong><\/td>\n\u00a0kPa<\/td>\nElectrical resistance<\/td>\n\u00a00 to 200 kPa<\/td>\n<\/tr>\n
Soil temperature<\/strong><\/td>\n\u00b0C<\/td>\nTransistor thermometry<\/td>\n-40 to +60\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tensiometry measurement<\/h4>\n

Weenat tensiometers mimic root function. They're equipped with a Watermark sensor capable of precisely measuring the force (in kPa) that roots must exert to extract water from the soil.<\/p>\n

Temperature probe<\/h4>\n

Each Weenat tensiometer is equipped with a probe to monitor soil temperature (\u00b1 0.5\u00b0C).<\/p>\n<\/div><\/div>

Data transmission to the Weenat application<\/h3>

Sensor data is transmitted in near real-time via low-power Sigfox, LoRa, or LTE-M NB-IoT (4G\/5G) networks, which are energy-efficient.<\/p>\n<\/div><\/div>

High-quality material<\/h3>

Resistant battery<\/h4>\n

The Weenat tensiometric probe works wirelessly. Instead, you'll find an ultra-resistant battery with a minimum 2-year autonomy. When it's empty, your battery can be changed without technician intervention.<\/p>\n

316L stainless steel base<\/h4>\n

It's a low-carbon steel to prevent corrosion. It's very solid and completely rust-proof. So rest assured that your sensor will still be standing, even in 50 years.<\/p>\n

Other features<\/h4>\n\n\n\n\n\n\n\n
Sensor weight<\/strong><\/td>\n\n

from 0,7Kg to 1Kg<\/p>\n<\/td>\n<\/tr>\n

Base dimensions<\/strong><\/td>\n\n

Height: 47 cm to 77 cm | Diameter: 2.2 cm<\/p>\n<\/td>\n<\/tr>\n

\n

GPS sensor<\/strong><\/p>\n<\/td>\n

\n

Integrated into the sensor \u2013 Weekly geolocation<\/p>\n<\/td>\n<\/tr>\n

Warranty<\/strong><\/td>\n2 years<\/td>\n<\/tr>\n
French manufacturing<\/strong><\/td>\nIn Loire-Atlantique<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>

Easy and quick installation<\/h3>

1. Install your tensiometers<\/h4>\n

Once your order is confirmed, your tensiometric probes arrive at your place in a few days. And the good news is they're ready to use. Installation takes less than 10 minutes.<\/p>\n

2. Activate your Weenat account<\/h4>\n

Download the Weenat application on your mobile or web browser. Then create your account and connect your probes in a few clicks.<\/p>\n

3. Access your weather data<\/h4>\n

Receive reliable and ultra-local information on your soil water status. And enjoy the application's features to optimize your irrigation management.<\/p>\n<\/div><\/div>

\n \n \"REQUEST\n <\/a>\n<\/div><\/div><\/div>

Free quote request with no obligation.<\/em><\/p>\n<\/div><\/div><\/div><\/div><\/div>

20 to 30%<\/h3>

water savings<\/p>\n<\/div><\/div><\/div><\/div><\/div>

10 to 40%<\/h3>

additional yields<\/p>\n<\/div><\/div><\/div><\/div><\/div>

3 hours<\/h3>

of time saved per week<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div>

Weenat quality<\/h2>\n<\/div><\/div>

With Weenat, you invest in robust equipment that will last you a lifetime!<\/p>\n

The secret to durability? Beautiful finishes. With high-quality parts. And attention to the smallest details.<\/p>\n

Each sensor that leaves our workshops is a small precision jewel. And they'll accompany you for years.<\/p>\n

 <\/p>\n<\/div><\/div><\/div>

\"Weenat<\/span><\/div><\/div><\/div>
<\/span><\/div>

Made in France<\/p>\n<\/div><\/div><\/div>

<\/span><\/div>

Easy maintenance<\/p>\n<\/div><\/div><\/div>

<\/span><\/div>

Resistant battery<\/p>\n<\/div><\/div><\/div>

<\/span><\/div>

Integrated GPS tracker<\/p>\n<\/div><\/div><\/div>

<\/span><\/div>

2-year warranty<\/p>\n<\/div><\/div><\/div><\/div>

\"Margot<\/span><\/div><\/div>

Request your free online quote or contact us directly \ud83d\udc47<\/span><\/p>\n<\/div><\/div>

Free quote with no obligation<\/span><\/p>\n<\/div><\/div>

\n \n \"REQUEST\n <\/a>\n<\/div><\/div><\/div><\/div><\/div><\/div>

All your agro-weather data on a single application<\/h2>\n<\/div><\/div><\/div><\/div>

With Weenat, enjoy unique features to manage your irrigation.<\/strong> Take your data everywhere with you and monitor your plots 24\/7 from your computer, tablet, or smartphone.<\/p>\n<\/div><\/div>

Plan your watering rounds<\/h3>\n<\/div><\/div>

Your time is precious. Thanks to data from your probes and 15-day weather forecasts<\/strong>, you avoid unnecessary trips to your plots.<\/p>\n<\/div><\/div>

Make the right decisions<\/h3>\n<\/div><\/div>

With Weenat, you know exactly when your plants need water. Based on data from your probes and your soil type, the application tells you whether you're in a situation of saturation<\/span>, comfort<\/span>, vigilance<\/span>, <\/strong>or stress<\/span>.<\/strong><\/p>\n<\/div><\/div>

And say goodbye to water stress!<\/h3>\n<\/div><\/div>

Thanks to alerts<\/strong>, you're notified when water availability at a horizon changes threshold. You can then react as quickly as possible to avoid water stress<\/strong>.<\/p>\n

 <\/p>\n<\/div><\/div><\/div>

\"historic<\/span><\/div><\/div><\/div>
\"Readily<\/span><\/div><\/div>

The Available Water Reservoir<\/span>: your measurements translated into millimetres of available water<\/h2>\n<\/div><\/div>

50 kPa in sandy soil and 50 kPa in loamy soil don't represent the same water reserve. Thanks to the Available Water Reservoir<\/strong>, the Weenat app translates your Tensiometric Probe measurements in real time into millimetres of water actually available to your crops, at your sensors' depth.<\/p>\n

At a glance, you know whether your reservoir is full, in the Readily Water Tank<\/strong>, or in the Survival Tank<\/strong> - the critical threshold where you need to irrigate without delay. Rainfall and irrigation are displayed on the same graph so you can visualise the impact of each input.<\/p>\n<\/div><\/div>

DISCOVER THE RESERVOIR<\/a><\/div><\/div><\/div><\/div>
<\/span><\/div>

More than 40,000 farmers trust us<\/h2>\n<\/div><\/div>

Discover their story \u2935\ufe0f<\/p>\n<\/div><\/div><\/div><\/div>

\"Anthony<\/span><\/div>

\"Weenat probes allowed me to save water and better understand plant water needs\"<\/p>\n

Anthony Oboussier<\/strong>
Arborist in Dr\u00f4me, France<\/p>\n<\/div><\/div><\/div><\/div><\/div>

To go further<\/h2>\n<\/div><\/div><\/div><\/div>

What weather parameters are measured by the tensiometric probe?<\/h3>

The Weenat connected tensiometer is equipped with a Watermark tensiometric probe and a soil thermometer to monitor in real time the variations in your plot's soil.<\/p>\n

If you wish to monitor other agro-weather parameters on your plots, the tensiometric probes can be coupled with one or more other Weenat sensors, such as the rain gauge, anemometer, capacitive probe, frost sensor, or leaf wetness sensor.<\/p>\n<\/div><\/div>

How much does the Weenat tensiometric kit cost?<\/h3>

The Weenat tensiometric kit consists of 3 connected tensiometers from 15 to 30 cm and 3 connected tensiometers from 30 to 60 cm. To know the sale price of the tensiometric kit, request an online quote.<\/a><\/strong><\/p>\n

All data from your tensiometer kit is accessible on the Weenat application, thanks to the Weenat Expert subscription.<\/p>\n

 <\/p>\n<\/div><\/div>

Which subscription should I choose to access my tensiometer data?<\/h3>

All data (real-time and historical) from your tensiometer kit is accessible on the Weenat application, thanks to the Weenat Expert subscription.<\/p>\n

<\/h2>\n<\/div><\/div>

How the Weenat tensiometer probe works<\/h3>\n<\/div><\/div>

What are the differences between Weenat tensiometers and wired tensiometers?<\/h3>

The connected Weenat solution simplifies the irrigator's work by automating soil water tension readings via connected sensors. We gather the collected data and have set up alerts and decision support tools on a web and mobile application.<\/p>\n

Comparison between the cost of using Weenat connected probes and that of wired probes: (X minutes\/day for travel + X minutes\/day for reading + X minutes\/day for interpretation) x number of days = a lot of money, comfort, and reactivity.<\/p>\n

 <\/p>\n<\/div><\/div>

What is the measurement precision?<\/h3>

The reliability of the tensiometric probe measurement is more dependent on installation quality and proper choice of installation area than on the sensor itself. It's rare for two tensiometers to measure exactly the same thing, especially when the soil is dry.<\/p>\n

However, it's not the sensor's precision that will impact irrigation management quality; it's the evolution of tension relative to dry and wet reference levels that matters more than a one-time measurement.<\/p>\n

Tensiometry (kPa)<\/strong>
Measurement principle: Electrical resistance
Measurement range: 1 to 200 kPa
Measurement depth in soil:<\/p>\n