Remote Fuel Tank monitoring
NivelWatcher monitors the fuel oil level in your customers' tanks in real time, from a single dashboard. You know when they will need a refill before they call you. No urgent call-outs. No improvised routes. Real data from minute one.
Stay ahead of demand and build customer loyalty like never before
The biggest problem for fuel oil distributors is not the price. It is managing without visibility.
They don't know what is left in their clients' tanks until they ring with an empty one. By then, it is too late.
Every emergency delivery destroys the margin. Every improvised route drives up costs.
And it`s a problem with a solution: a level sensor connected to our platform or yours, telling you exactly what's in each tank, at all times.
That's exactly what changes with NivelWatcher.



Smart Fill Level Sensor
High-precision technology, seamless installation
- Instantly see your customersʼ tank levels—no more guesswork or blind calls
- Get automatic level alerts so you're always one step ahead.
- Track each customerʼs usage patterns to anticipate future orders
- Receive real-time notifications to act fast and secure every sale
- Available with Sigfox, LoRa or Cellular NB-IoT connectivity
- Available with ultrasonic or radar sensor technology to suit any installation
DOWNLOAD ULTRASOUND DATASHEET DOWNLOAD RADAR DATASHEET
User-Friendly Management Platform
Full remote control, anywhere
- Monitor all your customersʼ stock from your phone or computer—anywhere, anytime.
- Powerful analytics to predict demand and automate order creation.
- Adapt to business fluctuations with elastic logistics and smarter route planning.
- Assign roles and permissions for sales teams, distributors and customers.
What you get:
How does it work?
How does NivelWatcher work?

Transform your customer service. Predict customer needs, be more proactive and cut your costs. Build customer loyalty like never before.
Effective Loyalty
Offer maintenance, technical advice and more value-added services.
Full Automation
Orders generated automatically based on actual consumption.
Elastic Logistics
Efficiently manage fluctuations in demand.
Digital Supply Chain
Total supply chain control from a single dashboard.
Cost Reduction
Forecast demand and optimise your logistics to cut unnecessary costs.
Reinvent Your Business
Explore new loyalty schemes – fixed rates, automatic order confirmation, discounts and more.
What our customers say: Propenor
“We started out with five sensors on a pilot project. Today we have 50. Thanks to NivelWatcher, we can predict our customers’ needs, plan better and reduce costs. Our customers are more satisfied and loyal as a result. We plan to scale up the solution to revolutionise our relationship with our customers.”
-Raúl Blanco, Sales Representative, Propenor.


Do you want to stop reacting and start anticipating?
The first step is easy: request a diagnosis. Within a few weeks, you'll have a monitoring proposal ready to implement.
At Celestia TST, we adapt technology to your operations, not the other way around. With over 18 years of experience in the IoT ecosystem, our solutions are built to meet the most demanding requirements.