Liquid level sensors · designed and made in Poland, EU
Level measurement where electronics usually give up
The Aquilo transmitter hangs under the lid of a septic tank, a manhole or a district-heating chamber: in damp, in frost, with no mains power. It measures level, flow, temperature and humidity and detects flooding. The reading is on your phone before you would ever look inside.
Hangs above the liquid in a closed chamber: damp, flooding, frost. The housing closes with a gasketed cap and has no service openings; the only part you ever replace is the battery.
Sub-GHz radio, not WiFi, so it passes through a concrete lid. If the range turns out to be short, the antenna can be moved out on an extension.
3.6 V lithium cell. The panel shows battery level and warns well in advance, so you never find out only when the sensor goes silent.
What for?
Start from your tank
Same sensor, different questions: a homeowner wants to know when the septic tank needs emptying, a utility dispatcher wants the level in a hundred manholes at once, a heating company wants to know if there is water in the chamber. Pick your application and we will show the variant, the mounting and the plan for it.
Septic tank
Emptying date, alert before overflow, SMS to the tanker company.
Home and garden →Rainwater
How much is left for irrigation; the pump never runs dry.
Home and garden →Water & sewer utilities
Unpowered manholes report level and flow to the dispatcher.
Utilities and municipalities →District heating
Flooded chamber, temperature or humidity spike, before it reaches the valves.
Chambers and ducts →Agriculture
Slurry, drinking water, fuel: every tank in one app.
Farms →Industry
Process tanks without cabling, data over REST API.
Plants and warehouses →How it works
Three parts, zero cables
The transmitter measures without contact
Hanging under the lid, it measures the distance to the liquid surface with microwaves. Nothing touches the contents and nothing gets coated in sludge.
The reading goes by radio to the receiver
Sub-GHz radio, not WiFi: it passes through a concrete lid and carries the reading 20–30 m to the receiver plugged into a socket in the house. If the range turns out to be short, the antenna can be moved out on an extension.
The receiver hands the data over WiFi
To the panel and the app: history, alert thresholds, emptying forecast, push, e-mail and SMS notifications. The Basic plan is free.
The transmitter measures without contact
The same microwave measurement and the same IP67 housing, plus humidity and temperature in the chamber and flow in the manhole. Works where your WiFi does not reach: a holiday plot, a manhole under the street, a district-heating chamber.
It connects to the mobile network by itself
The SIM card is inside the sensor, with no carrier contract and no receiver. You set the reading interval; in logger mode it keeps collecting readings even with patchy coverage.
The panel and the app do the rest
2 years of history, thresholds on level, temperature and humidity, push and e-mail notifications, CSV export, REST API. The Premium LTE Flex plan covers the SIM card.
Products
WiFi or LTE: there is only one difference
Whether your WiFi reaches the tank. If it does, take the WiFi variant with a plug-in receiver. If the tank sits on a plot with no network, the LTE variant connects on its own.
Aquilo WiFi
A house with WiFi within 20–30 m of the tank
- Measuresliquid level, flooding
- Kittransmitter + plug-in receiver
- Connectivitysub-GHz radio to the receiver, receiver over WiFi
- Transmitter powerlithium battery, up to 2 years
- IntegrationsHome Assistant, Loxone, REST API
- Pricefrom € 169.00
Aquilo LTE
A plot, a sewer manhole, a district-heating chamber, a remote site: no WiFi on the spot
- Measuresliquid level or flow, temperature, humidity, flooding
- Kittransmitter only, no receiver
- Connectivitymobile network, independent of the house
- Transmitter powerlithium battery
- IntegrationsHome Assistant, Loxone, REST API
- For businesslogger mode
- Pricefrom € 209.00
App and integrations
The data is yours. Take it wherever you want.
The iOS and Android app shows level, history and forecast. If you have a smart home, the sensor talks to it directly, and for your own solutions there is a REST API with OpenAPI documentation.
About us
Designed and made in Poland, EU
Aquilo is a Polish company designing measurement electronics: sensors for the home and garden and professional solutions for water utilities, district heating and industry. Our devices, with a housing built for harsh environments, a microwave sensor, a battery that lasts and our own software, are designed and assembled in Poland. When you need help, you talk to the people who built them.
- since 2017
- Aquilo sensors in tanks across Europe
- 6 sectors
- from septic tanks to district heating and industry
- 100 %
- design, production and service in the EU
Reviews
What people write after installing
“The device is well thought out and, most importantly, it works. Even in geometrically difficult conditions. The Chinese ultrasonic sensor could not handle the harsh conditions.”
“Both modules carefully made, installation is dead simple. Integration with HA, made in Poland, support top-notch.”
“Gives reliable readings. Truly one of the best expenses when building a house.”
“Everything works as it should, technical support almost immediate.”
For businesses and operators
Many sites, one panel
District-heating chambers, manholes, tanks at several addresses: every sensor in one view, with access for several people and data available over the API to your own systems.
Let’s talk about a rollout- The LTE variant needs no infrastructure on site: installation means hanging the transmitter; in logger mode it keeps collecting readings even where coverage is patchy
- Alerts on flooding, temperature or humidity spikes, lost connectivity and low battery go to the people you choose, with roles: administrator, installer, viewer
- REST API for higher-level systems, with an OpenAPI specification, one for consumers and one for organisations
- Service and spare parts in the EU; repairs are quoted and usually cheaper than a new device
- One panel for the whole sensor family: new measurement types land in the same view, with no new app
