EOS – IoT Radar Level Sensor
Precise, non-contact 60 GHz pulse radar measurement — from smart cities to industry. Range up to 10 m, ±10 mm accuracy, IP69K, replaceable batteries. Two designs, two versions, one ecosystem.
EOS-R & EOS420
Non-contact radar or external 4–20 mA level probe—both versions share the same wireless technology, configuration, and cloud ecosystem.
EOS-R
Non-contact level measurement using pulse radar—directly on the surface, without contact with the medium.
- Range up to 10 m · ±10 mm absolute, 1 mm resolution
- Liquids & bulk materials · open tanks, shafts, bodies of water
- Low-maintenance & wear-free · no contact with media
- Dedicated GNSS in all radio variants
EOS420
Connection of external 4–20 mA level probes via M12 — for measurement points that the radar cannot reach.
- For hydrostatic level probes · 12 V power supply, 4–20 mA
- Wells, boreholes, and deep water · extra-long measurement depths
- Tilt & Opening Detection · Motion-Based Tracking
- Same wireless & cloud connectivity as EOS-R
One housing, two mounting options
Suitable for any installation location—from an IBC lid to a narrow shaft.
1.5-inch thread
Process connection for tanks, pipes, and containers — quick to screw in, permanently sealed, without an additional adapter.
Low-profile version
Low profile for shafts, IBC lids, and confined installation locations with flush mounting.
Two measurement methods
Switchable via configuration — from clear liquid levels to diffuse bulk material surfaces.
Liquid Level
- Amplitude analysis of the echo over time
- Clear, well-defined surface reflections
- Precise level measurements in tanks, shafts, and bodies of water
Smart Waste
- Jumps in phase variance over time and distance
- Also detects objects with very faint echoes
- Ideal for bulk materials, waste, and diffuse surfaces
Everything on board
Wireless Standards
LoRaWAN, mioty, and cellular (NB-IoT / LTE-CAT-M1)—all in one device.
Auto antenna selector
Internal or external SMA antenna — automatic selection based on configuration.
M12 connector
Optional for 4–20 mA probes or external power supply / switch output.
Custom Horn Antenna
Focused, low-interference radar beam — approx. 25° / 15° beamwidth.
IP69K
Dust-tight and high-pressure water-resistant. Overmolded SMA connector, vibration-resistant.
High-Performance GPS
Dedicated GNSS (GPS, Galileo, GLONASS, BeiDou) in all versions.
Power source
Replaceable 3×AA LiSOCl₂ or 2×C LiMnO₂ cells for extra-long runtime.
Battery Level Indicator
Accurate remaining battery level display — plan maintenance, no surprises.
BLE Provisioning
Configuration and provisioning via Bluetooth or LoRaWAN downlink.
Municipal Infrastructure
Whether it’s a canal, river, or groundwater—the EOS provides level data where no one has looked before.
Channels & shafts
Monitor liquid levels in sewer lines and manholes and detect overflows early.
Flooding
Track water levels in rivers and retention basins in real time and issue timely warnings.
Groundwater levels
Continuously document groundwater levels in wells and monitoring stations.
Other Industries
Industry
Tank and container fill levels in production.
Logistics
Automatically track warehouse and silo inventory.
Oil & Gas
Reliably measure tank farms and separators.
Chemicals
Non-contact monitoring of aggressive media — no probe wear.
Building Management
Water, cistern, and fire suppression water tanks in the building.
Agriculture
Manure, feed, and water reserves on the farm and in the fields.
EOS-Radar – tailored to your infrastructure
LoRaWAN®, mioty® or NB-IoT/LTE-M. Same hardware platform, same sensing technology – choose the wireless standard that best fits your deployment.
EOS-Radar LoRaWAN®
IoT level monitoring sensor for external 4–20 mA probes with LoRaWAN® connectivity. Ideal for municipal networks, smart city projects and private gateways.
EOS-Radar mioty®
EOS420 with mioty® connectivity for highly reliable LPWAN communication, even in challenging radio environments.
EOS-Radar NB-IoT / LTE-M
Cellular-based level monitoring without the need for a dedicated gateway. Ideal for distributed assets and remote installation.
Starvice & Orelia
EOS data flows directly into Starvice, the central portal of the Sentinum Cloud. The Orelia app visualizes fill levels, location, and status of all EOS devices.
- Live Map & History — All EOS Devices at a Glance
- Alerts & Reports — Thresholds, PDF/CSV Export
- API & Webhooks — Datahub integration into your own systems
- ThingsBoard-based — dashboard-ready and extensible
Specifications at a Glance
- Method
- Pulse Radar (CPR) · 60.5 GHz · Custom horn antenna
- Measurement Range
- Up to 10 m · absolute accuracy ±10 mm · resolution 1 mm
- Algorithms
- Liquid Level (Amplitude) · Smart Waste (Phase Variance) — switchable via downlink
- Wireless Standards
- LoRaWAN · mioty® · NB-IoT · LTE-M — 868 MHz / Bands 8 & 20
- Localization
- GNSS (GPS · Galileo · GLONASS · BeiDou) · Wi-Fi SSID Scan · Cell Locate · Tracking in Motion
- Protection Class
- IP69K · dust- and water-jet-proof (high-pressure cleaning)
- Temperature
- −25 °C to +85 °C operating temperature
- Dimensions
- 109 × 53 × 33 mm · 160 g · compact design
- Configurations
- Thread (T) 1.5″ external thread · Flat (F) without thread · Overmolded SMA · M12 (4–20 mA / Power)
- Security
- End-to-end encryption (AES-128) · Device authentication · BLE provisioning
- Integration
- Standardized cloud decoding · REST · Webhooks · MQTT · SCADA / ERP / Edge / Cloud
- Power Supply
- 3×AA LiSOCl₂ or 2×C LiMnO₂ · optional M12 external power supply
- Applications
- Outdoor · Industrial · Smart City · Harsh Environments
SKU Overview
All available EOS variants by wireless standard, model, and antenna option.
| Part Number | Battery | Model | External Antenna | Available | Configuration |
|---|---|---|---|---|---|
| S-EOS-LOEU-R-F | 3×AA | Flat | — | ✓ | BLE |
| S-EOS-MIOTY-R-F | 3×AA | Flat | — | ✓ | BLE |
| S-EOS-NBM1-R-F | 3×AA | Flat | — | ✓ | BLE |
| S-EOS-LOEU-R-F-SMA | 3×AA | Flat | ✓ | ✓ | BLE |
| S-EOS-MIOTY-R-F-SMA | 3×AA | Flat | ✓ | ✓ | BLE |
| S-EOS-NBM1-R-F-SMA | 3×AA | Flat | ✓ | ✓ | BLE |
| S-EOS-LOEU-R-F-SMA-M12 | 3×AA | Flat | ✓ | ✗ | BLE |
| S-EOS-MIOTY-R-F-SMA-M12 | 3×AA | Flat | ✓ | ✗ | BLE |
| S-EOS-NBM1-R-F-SMA-M12 | 3×AA | Flat | ✓ | ✗ | BLE |
| S-EOS-LOEU-R-T | 3×AA | 1.5″ thread | — | ✓ | BLE |
| S-EOS-MIOTY-R-T | 3×AA | 1.5″ thread | — | ✓ | BLE |
| S-EOS-NBM1-R-T | 3×AA | 1.5″ thread | — | ✓ | BLE |
| S-EOS-LOEU-R-T-SMA | 3×AA | 1.5″ thread | ✓ | ✓ | BLE |
| S-EOS-MIOTY-R-T-SMA | 3×AA | 1.5″ thread | ✓ | ✓ | BLE |
| S-EOS-NBM1-R-T-SMA | 3×AA | 1.5″ thread | ✓ | ✓ | BLE |
| S-EOS-LOEU-R-T-SMA-M12 | 3×AA | 1.5″ thread | ✓ | ✗ | BLE |
| S-EOS-MIOTY-R-T-SMA-M12 | 3×AA | 1.5″ thread | ✓ | ✗ | BLE |
| S-EOS-NBM1-R-T-SMA-M12 | 3×AA | 1.5″ thread | ✓ | ✗ | BLE |
Additional configurations (battery variants, M12 power, custom colors) available upon request.
Flexible Mounting Options
The right solution for every installation scenario—from M4 screw mounting to flange mounting. Matching mounting accessories available upon request.
M4 screw mounting
4× integrated M4 threaded inserts on the back. Permissible screw-in depth: 7.7 mm.
1.5″ process thread
“T” version with 1.5″ male thread — screws directly into existing adapters or sealing flanges.
Magnetic wall mounting
Neodymium magnets on a metal surface — tool-free, reversible, ideal for temporary applications.
Adhesive mounting
Double-sided industrial adhesive tape for smooth, dry surfaces — quick and residue-free.
Front-panel blind rivet nut
Preferred option: The sensor sits flush against the wall; battery and SIM card can be replaced without loosening any screws.
Flange mounting
For standard screw connections — max. 7.7 mm screw-in depth, ideal for tank flanges.
Wall mount
Optional stainless steel bracket (167.5 mm extension) for a defined distance from the measured material—also suitable for overhead mounting.
Alignment
Mount parallel to the measured object—non-horizontal alignment is compensated for via the level offset.
Level measurement that thinks for itself
From hardware to the cloud—everything from a single source. Let’s work together to implement your application.