EOS420 – IoT Sensor for 4–20 mA Level Probes
Wireless level monitoring with external hydrostatic level probes via the rugged M12 connector. Ideal for wells, boreholes, groundwater monitoring stations, tanks, and shafts—anywhere radar reaches its limits.
Easily integrate industrial 4–20 mA sensors
The EOS420 was specifically designed for connecting external hydrostatic level probes. Via the rugged M12 interface, standard industrial 4–20 mA sensors can be connected, powered, and monitored wirelessly using LoRaWAN®, mioty®, NB-IoT, or LTE-M connectivity.
- Direct support for 4–20 mA level probes
- 12 V sensor power supply provided by the EOS420
- Compatible with leading manufacturers such as ifm
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.
EOS420 – 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.
EOS420 LoRaWAN®
IoT level monitoring sensor for external 4–20 mA probes with LoRaWAN® connectivity. Ideal for municipal networks, smart city projects and private gateways.
EOS420 mioty®
EOS420 with mioty® connectivity for highly reliable LPWAN communication, even in challenging radio environments.
EOS420 NB-IoT / LTE-M
Cellular-based level monitoring without the need for a dedicated gateway. Ideal for distributed assets and remote installation.
Everything on board
Wireless standards
LoRaWAN, mioty & Cellular (NB-IoT / LTE-CAT-M1) — all in one device.
M12 connection
Rugged M12 connection for 4–20 mA level probes and external industrial sensors.
Auto Antenna Selector
Internal or external SMA antenna — automatic selection based on configuration.
IP69K
Dustproof and high-pressure waterproof. Overmolded SMA connector, vibration-resistant.
High-Performance GPS
Dedicated GNSS (GPS, Galileo, GLONASS, BeiDou) in all versions.
Accelerometer
Integrated sensor for shock detection and “Tracking on Activity.”
Power source
Replaceable 3×AA LiSOCl₂ or 2×C LiMnO₂ cells for extra-long runtime.
BLE Provisioning
Configuration and provisioning via Bluetooth or LoRaWAN downlink.
Flexible Intervals
Measurement and transmission intervals are freely configurable—ideal for long-term deployments.
Municipal Infrastructure
Whether it’s a well, a borehole, or a retention basin—the EOS420 provides level data wherever a probe is the only practical option.
Groundwater levels
Continuously document groundwater levels in wells and monitoring stations.
Boreholes & Deep Water
Probe measurements down to great depths—even in narrow well casings.
Retention & Storage Basins
Continuous level monitoring for flood and stormwater management.
Other Industries
Industry
Continuously monitor process media and additives in tanks and containers.
Utilities & Wastewater Treatment Plants
Water and wastewater levels in remote outdoor facilities.
Retrofit
Convert existing 4–20 mA probes to a wireless IoT infrastructure.
Chemistry
Probe materials available for aggressive media and chemicals.
Building Management
Cisterns, firewater tanks, and rainwater tanks within the building.
Mobile Tanks
Container and tank monitoring with GNSS tracking included.
Starvice & Orelia
EOS420 data flows directly into Starvice, the central portal of the Sentinum Cloud. The Orelia app displays the level, location, and status of all devices.
- Live Map & History — all devices at a glance
- Alarms & Reports — Threshold Values, PDF/CSV Export
- API & Webhooks — Datahub integration into your own systems
- ThingsBoard-based — dashboard-ready and extensible
Specifications at a Glance
- Measurement input
- 4–20 mA current loop · M12 connector · 12 V sensor power supply
- Compatibility
- Hydrostatic level probes & industrial 4–20 mA sensors (e.g., ifm PS3417)
- Wireless Standards
- LoRaWAN · mioty® · NB-IoT · LTE-CAT-M1 — 868 MHz / Band 8 & 20
- Transmit power
- 14 dBm (LoRaWAN/mioty) · 23 dBm (NB-IoT)
- 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
- −20 °C to +80 °C operating temperature · 5–99% relative humidity
- Dimensions
- 128 × 57 mm (threaded version) · 160 g
- Housing material
- POCAN 4225B PBT-GF-20
- Configurations
- Thread (T) 1.5″ external thread · Flat (F) without thread · Overmolded SMA
- Additional Sensors
- Accelerometer (shock detection, activity tracking) · Temperature measurement
- 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 (LS14500) or 2×C LiMnO₂ (LM26500) · replaceable
- Applications
- Outdoor · Industrial · Smart City · Harsh Environments
SKU Overview
All available EOS420 variants by radio standard, model, antenna, and battery option.
EOS Version (3×AA LiSOCl₂)
| Item Code | Battery | Model | External Antenna | Available | Configuration |
|---|---|---|---|---|---|
| S-EOS-LOEU-420-F | 3×AA | Flat | — | ✓ | BLE |
| S-EOS-MIOTY-420-F | 3×AA | Flat | — | ✓ | BLE |
| S-EOS-NBM1-420-F | 3×AA | Flat | — | ✓ | BLE |
| S-EOS-LOEU-420-F-SMA | 3×AA | Flat | ✓ | ✓ | BLE |
| S-EOS-MIOTY-420-F-SMA | 3×AA | Flat | ✓ | ✓ | BLE |
| S-EOS-NBM1-420-F-SMA | 3×AA | Flat | ✓ | ✓ | BLE |
| S-EOS-LOEU-420-F-SMA-M12 | 3×AA | Flat | ✓ | ✗ | BLE |
| S-EOS-MIOTY-420-F-SMA-M12 | 3×AA | Flat | ✓ | ✗ | BLE |
| S-EOS-NBM1-420-F-SMA-M12 | 3×AA | Flat | ✓ | ✗ | BLE |
| S-EOS-LOEU-420-T | 3×AA | 1.5″ thread | — | ✓ | BLE |
| S-EOS-MIOTY-420-T | 3×AA | 1.5″ thread | — | ✓ | BLE |
| S-EOS-NBM1-420-T | 3×AA | 1.5″ thread | — | ✓ | BLE |
| S-EOS-LOEU-420-T-SMA | 3×AA | 1.5″ thread | ✓ | ✓ | BLE |
| S-EOS-MIOTY-420-T-SMA | 3×AA | 1.5″ thread | ✓ | ✓ | BLE |
| S-EOS-NBM1-420-T-SMA | 3×AA | 1.5″ thread | ✓ | ✓ | BLE |
| S-EOS-LOEU-420-T-SMA-M12 | 3×AA | 1.5″ thread | ✓ | ✗ | BLE |
| S-EOS-MIOTY-420-T-SMA-M12 | 3×AA | 1.5″ thread | ✓ | ✗ | BLE |
| S-EOS-NBM1-420-T-SMA-M12 | 3×AA | 1.5″ thread | ✓ | ✗ | BLE |
Level Measurement That Thinks for Itself
From hardware to the cloud—everything from a single source. Let’s work together to implement your use case.