Connected rainwater sensor —
gauge and level probe
for your tank
The Tankio connected gauge measures the level of your rainwater tank in real time. Level probe by hydrostatic pressure, smartphone alerts and leak detection. Take control of your water supplies.
NB-IoT sensor: €249 incl. VAT — no subscription
Main tank
water_dropConnected water tank gauge: no more uncertainty.
Rainwater harvesting only delivers its full benefits when you can manage it effectively.
Never knowing how much is left
Not knowing whether you have enough water for watering or cleaning, and risking an empty tank at the wrong moment.
Wasted resources
Using mains water as a precaution even though your tank may be full — an avoidable waste.
Manual chores
Having to open the tank inspection hatch in the rain and use a makeshift gauge — an outdated chore.
Rainwater level probe:
millimeter precision.
A connected level sensor for rainwater tanks, coupled with a predictive analysis application. The submerged probe measures the volume with precision to the nearest liter, for reliable monitoring of your water reserve.
Real-time tracking
The submerged probe measures the pressure of the water column to determine the level. The device then sends readings over NB-IoT; the app uses your tank configuration to display the level and volume.
High-capacity battery
The high-capacity battery provides more than 3 years of battery life thanks to the sensor’s very low power consumption, with no routine maintenance.
Predictive weather
Anticipate your needs. The app analyzes local forecasts to tell you when your tank will be full.
Alerts
Be notified when the level is critical, before heavy rain, and in the event of leak detection to limit water loss.
History
See how much drinking water you save each month.
Multi-tanks & family sharing
Track multiple tanks (rainwater, borehole, reservoir) in a single app. Share access with the whole family, everyone receives alerts on their phone.
What is a connected rainwater sensor?
A connected rainwater sensor is an electronic device that measures the water level in a collection tank and transmits the data to a mobile application. Hydrostatic pressure technology — used by tankio — offers reliable measurement, insensitive to foam and debris. Ideal for real-time monitoring of your reserves, detection of leaks and optimization of watering. The connected gauge allows you to know your remaining water volume without opening the tank inspection hatch.
Why optimize?
Watering
Know exactly how long you can water without depleting your supply.
Cleaning
Wash your car or patio only when you have excess rainwater.
Thunderstorms
Prepare for heavy rain by managing the tank's available capacity in advance.
Savings
Drastically reduce your bills by exploiting 100% of your storage potential.
Installation in 5-10 minutes.
Install the device, switch it on, then configure your tank in the Tankio app. No gateway or connection to your home WiFi is needed.
Install
Install the device on your tank following the instructions.
Switch on
Switch on the device to start the NB-IoT connection.
Configure
Configure the tank in the app, then check the first readings.
Frequently asked questions
Everything you need to know about monitoring your rainwater tank.
help How can I check the level of my rainwater tank?
The most efficient and accurate way is to use a high-precision sensor like tankio. Our system measures water column pressure in real time, allowing you to view the exact volume on your smartphone without opening the tank inspection hatch.
insights How can I make better use of rainwater?
Optimization requires predictive management. By knowing your current stock and anticipating future rains via tankio's integrated weather forecasts, you can decide to water generously before a downpour or to restrict your consumption during periods of prolonged drought.
settings_input_component Is it compatible with all tanks?
Yes, our sensor is universal. Whether it is an underground concrete tank, an above-ground plastic tank or a flexible rainwater tank, the tankio system adapts to all shapes and all materials up to a depth of 5 meters.
battery_charging_full How long does the sensor battery last?
The Tankio sensor uses a high-capacity battery and ultra-low-power electronics. Its battery life exceeds 3 years under normal operating conditions.
Switch to smart water management.
Join thousands of households who have chosen peace of mind and more efficient water use.
Order tankio shopping_cartverified Free delivery within 48 hours. 2 year warranty.