Oil and diesel tanks
Continuously monitor heating oil and diesel tanks – trigger reorders early and avoid shortages.
Level Monitoring
Capture levels wirelessly – optimise your logistics
With the EOS series and Orelia Cloud, you always know exactly how much is inside – as volume, weight or fill level in %. No unnecessary trips, no overflowing tanks: fillings and emptyings are automatically flagged and documented in full.
Trusted by industry, municipalities and logistics
Applications
The right setup for every container
Silos and large containers
Feed, pellet or raw material silos – volume and weight readable at a glance, refills planned as needed.
Groundwater levels
Level probes at boreholes and monitoring stations – wireless, self-sufficient and fully documented.
IBCs and barrels
IBC containers and barrels holding chemicals, water or additives – track remaining quantity in litres and per cent.
River levels and overflows
Contactless level measurement on rivers, streams and overflow structures – reliable even during flooding.
Waste containers
Only collect full containers – plan routes dynamically based on fill level and cut costs.
Channels and shafts
Capture sewer channels, stormwater retention and process tanks contactlessly using radar, fully documented.
Cisterns and soakaways
Keep an eye on rainwater cisterns and infiltration systems – monitor levels automatically and discharge as needed.
Why Sentinum
Why you should choose us
The benefits of our solution – from hardware to cloud.
Cost efficient
No cabling, no server infrastructure of your own – EOS and Orelia reduce effort and cost from day one.
IoT experience
Made in Germany, part of the ifm Group – years of expertise in robust industrial IoT sensor networks.
Multi-protocol approach
LoRaWAN®, mioty®, NB-IoT and LTE-M – choose the right wireless standard, not the other way round.
API without vendor lock-in
Open REST API and webhooks – level data integrates easily into ERP, TMS and BI systems.
Rugged, intelligent hardware
IP69K, replaceable batteries, 60 GHz radar and intelligent measurement algorithms for harsh industrial environments.
Covers many use cases
One sensor ecosystem for tanks, silos, channels, containers, waterways and process tanks – scalable everywhere.
Building Blocks
Web app
Hardware
One platform for levels
EOS sensors for every installation location and Orelia Cloud for configuration, alerts and documentation – in a single view.
Orelia
Level dashboard with live readings in volume, weight and per cent, alert rules for filling and emptying, route planning and audit-ready data export – no server infrastructure of your own required.
Learn more →
EOS series
EOS-R with contactless 60 GHz pulse radar or EOS420 for 4–20 mA level probes – the same platform, the same wireless standards: LoRaWAN®, mioty®, NB-IoT and LTE-M.
View the EOS overview ↗
Optimised in 3 steps
From measurement to optimised routes
1
Measure
EOS-R measures contactlessly via 60 GHz radar; EOS420 reads connected 4–20 mA level probes – battery-powered and low maintenance.
2
Alert
Orelia automatically notifies you when a container is due for emptying, needs refilling, or exceeds threshold values.
3
Optimise & document
Only visit full or empty containers – trips, fillings and emptyings are logged and exported in full.
Orelia Web App
All fill levels at a glance – on any device
Dashboard, level display and historical data including CSV/Excel export – directly in the browser, no installation required.
Logistics Efficiency
No more redundant routes
Instead of visiting every container on a fixed schedule, Orelia shows you exactly which location actually needs attention. That saves mileage, fuel and staff hours – and documentation is generated automatically.
- Demand-based routes – only visit full or empty containers
- Early warning for fillings and emptyings
- Volume, weight & % – output that fits your process
- Audit-ready reports per container, location or time period
Orelia Features
Configure, alert on and analyse fill levels
Everything for reliable level monitoring – in a single web interface.
01 · Level configuration
Set up a container once – understand it everywhere
Define geometry, nominal volume and density per container. Orelia automatically converts the raw measurement into volume, weight and per cent.
- Container geometries: cylinder, cuboid, IBC, silo
- Conversion into volume (l/m³), weight (kg/t) and fill level in %
- Density and offset calibration per asset
- Grouping by location, route or customer
02 · Warnings & alerts
Early warning for filling and emptying
Define threshold values per container or group – Orelia automatically notifies you when refilling or emptying is required.
- Individual thresholds for full, empty and critical levels
- Alerts via email, SMS and webhook
- Escalation levels and recipient lists
- Trend detection: consumption per hour/day
03 · Reports & records
Automated documentation
Recurring reports, audit-ready exports and a tamper-proof archive – for internal processes and external compliance requirements.
- Automatic PDF reports (daily, weekly, monthly)
- CSV export for time periods, locations and containers
- Signed, tamper-proof archiving
- Consumption and filling history per asset
04 · API
Data feeding your ERP and dispatch systems
Already have an ERP, routing or logistics system? Orelia delivers fill level values and alerts directly via REST or webhook.
- REST API for readings, assets and reports
- Webhook push on alerts and thresholds
- Payload decoder available as an NPM package
Hardware
Two technologies, one IoT ecosystem
Choose the EOS variant that fits your measuring task and installation location. Both sensors share the same platform, the same wireless standards and the same cloud integrations.
EOS-R
Contactless level measurement via 60 GHz pulse radar – directly onto the surface, without contact to the medium. For liquids and bulk solids, open containers, shafts and waterways.
- Range up to 10 m · ±10 mm absolute, 1 mm resolution
- Liquids & bulk solids · IBCs, tanks, channels, silos
- Low maintenance & wear-free · no medium contact
- IP69K · –25 °C to +85 °C · replaceable batteries
- LoRaWAN®, mioty®, NB-IoT & LTE-M · dedicated GNSS
EOS420
Wireless connection of external hydrostatic level probes via the rugged M12 connector. Ideal for wells, boreholes, groundwater monitoring stations, tanks and shafts – wherever radar reaches its limits.
- 4–20 mA input · M12 · industry standard
- 12 V sensor supply for external probes (e.g. ifm PS3417)
- IP69K · –20 °C to +80 °C · replaceable batteries
- LoRaWAN®, mioty®, NB-IoT & LTE-M
- Made in Germany
EOS with Web App
Radar level sensor with web app – two form factors
Reliable level and distance measurement using radar technology for industrial applications, tanks, silos, shafts and containers.
NB-IoT/LTE-CAT-M1
EOS radar with web app – low-profile design
Wireless IoT radar level and distance sensor for tanks, silos, shafts and industrial facilities with NB-IoT/LTE-M connectivity, rugged IP69K construction and direct cloud connectivity for reliable monitoring without additional infrastructure.
NB-IoT/LTE-CAT-M1
EOS radar with web app – 1.5" thread
Wireless IoT radar level and distance sensor with NB-IoT/LTE-M connectivity for reliable monitoring of tanks, silos, shafts and industrial facilities, including direct cloud connectivity, GNSS positioning and rugged IP69K design.
Three wireless standards
EOS radar – matched to your infrastructure
LoRaWAN®, mioty® or NB-IoT/LTE-M. Same hardware base, same sensor technology – you choose the right wireless standard.
LoRaWAN®
EOS Radar LoRaWAN®
IoT level sensor for external 4–20 mA level probes with LoRaWAN®. Ideal for municipal networks, smart city and private gateways.
mioty®
EOS Radar mioty®
EOS420 with mioty® for exceptionally robust LPWAN communication even in challenging radio environments.
NB-IoT / LTE-M
EOS Radar NB-IoT / LTE-M
Cellular-based level monitoring without your own gateway. Ideal for distributed facilities and remote locations.
FAQ
Frequently asked questions
Answers on technology, installation, battery life and integration.
What range does the EOS radar sensor have?
The 60 GHz pulse radar measures contactlessly up to 10 m distance with an accuracy of ±10 mm and 1 mm resolution – for liquids and bulk solids.
How long does the battery last?
Depending on the transmission interval and wireless standard, the sensors achieve over 5 years of battery life. The batteries are replaceable, so the sensor never needs to be replaced.
Do I need my own SIM card or a gateway?
With the NB-IoT/LTE-M variants, connectivity is included – no mobile contract of your own required. For LoRaWAN® or mioty®, use an existing or your own gateway.
How complex is the installation?
Plug & Work: screw the sensor in via the 1.5-inch thread or mount it flat on the lid, add it in the Orelia web app – done. No wiring, no electrician required.
Can I import the data into my own system?
Yes. Orelia offers an open REST API and webhooks – fill levels can be passed directly into ERP, TMS or BI systems. No vendor lock-in.
Which media and containers is EOS suitable for?
Tanks, silos, IBCs, barrels, waste containers, cisterns, channels and waterways – for liquids and bulk solids. Where radar reaches its limits, EOS420 with 4–20 mA level probes covers the gap.
Get started now
Ready for efficient level monitoring?
Whether it's a single tank or a multi-site rollout – we'll advise you on the right setup of EOS-R, EOS420 and Orelia.