EC-M12 · NB-IoT / LTE-M / Optional LoRaWAN
Battery Powered Data Logger for Cellular Remote Monitoring
The NORVI EC-M12 is an industrial cellular data logger for long-term remote monitoring at sites without mains power. Choose 4-20mA, RS-485, digital, mixed analog/digital, or strain-gauge I/O with NB-IoT, LTE-M and optional LoRaWAN connectivity.
IP67
38,000
mAh
STM32L072
SIM7070
Multi-Year
Deployment
Industrial
Sensor Inputs
Local microSD
Backup
Your Cloud /
Server
Why NORVI
Why Choose the NORVI EC-M12
Six reasons integrators and OEMs specify the EC-M12 for unattended field deployments.
Rugged Industrial Design
IP67-rated enclosure built to survive outdoor, agricultural, and industrial environments where standard electronics fail.
Long Battery Life
A 38,000mAh dual-cell Li/SOCl2 battery pack is engineered for multi-year unattended field deployment.
Secure Connectivity
NB-IoT, LTE-M, and 2G connectivity via the SIM7070 modem, with optional LoRaWAN for long-range low-power sites.
Cloud Ready
Connect to your own server or platform - NORVI supplies firmware built for your infrastructure, not a locked ecosystem.
Easy Deployment
Programmable I/O, an inbuilt real-time clock, and microSD logging mean fast commissioning in the field.
Reliable Operation
An ultra-low-power STM32L072 MCU and industrial-grade components are designed for years of continuous, unattended service.
Product Lineup
Choose the Right EC-M12 Configuration
One battery powered cellular data logger platform with five sensor-interface configurations.
Model D
EC-M12-BC-C6-C-D
- 1× digital input
- 2× 4-20mA / 0-10V analog inputs
- 12V sensor excitation
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Firmware
for your own platform
Engineering Data
Platform Technical Specifications
Common hardware, connectivity and power specifications across the EC-M12 platform.
| Category | Specification | Details |
|---|---|---|
| Microcontroller | STM32L072 | Ultra-low-power MCU |
| Cellular Modem | SIM7070 | 2G, Cat-M1 and Cat-NB1 support |
| Network Support | 2G / LTE-M / NB-IoT | Low-power wide-area cellular connectivity |
| Optional Connectivity | LoRaWAN | Optional long-range low-power wireless connectivity |
| Real-Time Clock | Inbuilt | Timestamping for logged measurements |
| Storage | microSD up to 256GB | Expandable local data backup |
| Battery | 2 × ER34615H Li/SOCl2 | Non-rechargeable lithium cells |
| Battery Capacity | 38,000 mAh | Combined dual-cell capacity |
| Enclosure | IP67 | Dust and water resistant field enclosure |
| Expected Service Life | 5+ years | Under suitable low-duty-cycle logging profiles |
Inside the EC-M12
Built for Long-Term, Unattended Field Monitoring
A compact industrial architecture that combines low-power operation, field sensor interfaces, local storage and remote connectivity.
38,000mAh Battery
IP67Enclosure
256 GBmicroSD
LTE-MNB-IoT
01 · Battery Management
Multi-Year Runtime, Built In
Dual ER34615H Li/SOCl2 cells provide a combined 38,000mAh capacity for low-duty-cycle remote deployments.
02 · Cellular Communication
NB-IoT, LTE-M and Optional LoRaWAN
SIM7070 connectivity supports Cat-M1 and Cat-NB1 cellular networks, with optional LoRaWAN for suitable sites.
Connect Field Sensors Directly
Choose 4-20mA, RS-485, digital, mixed analog/digital or strain-gauge I/O by model.
IP67 Field-Ready Enclosure
Built for outdoor, agricultural and industrial installations where dust and water protection matter.
Timestamped Data with Backup
An inbuilt RTC and microSD storage up to 256GB support scheduled measurements and local data retention.
From Sensor to Your Platform
Move field readings to your own server or cloud without routine manual data collection.
SensorEC-M12NetworkCloud
Protocols & Interfaces
Cellular Data Logger Connectivity & Sensor Interfaces
A compact view of the confirmed communication methods and sensor interfaces available across the EC-M12 platform.
NB-IoT / LTE-M
Low-power cellular connectivity through the SIM7070 modem
Optional LoRaWAN
Long-range low-power wireless option for suitable deployments
MQTT
Documented for transmitting logger data to remote platforms
RS-485 / Modbus RTU
Industrial serial communication available on Model B
Industrial Sensor I/O
4-20mA, 0-10V, digital and strain-gauge options by model
Your Cloud / Server
Firmware can be built around your own remote platform
Where It's Deployed
Battery Powered Data Logger Applications
Use the EC-M12 where power and network access are limited but reliable field measurements still need to reach a remote platform.
Water & Wastewater Monitoring
Monitor level, pressure, flow and other field measurements across reservoirs, tanks, sewer assets and remote wastewater infrastructure.
Borehole & Groundwater Monitoring
Collect groundwater-level measurements from remote boreholes where mains power and wired communications may not be available.
View Borehole Groundwater MonitoringReservoir & Tank Level Logging
Capture level readings from remote reservoirs and tanks and transmit them without routine site visits.
Read the Reservoir Monitoring Case StudyAgricultural Data Logging
Connect field sensors for remote soil, water and environmental measurements across agricultural sites.
Explore Custom Monitoring ProjectsPressure Data Acquisition
Use Model A with industrial 4-20mA pressure transmitters for pipelines, tanks and distributed process monitoring.
Environmental Monitoring
Log remote environmental measurements with local storage and scheduled low-power transmission to a remote platform.
Browse EC-M12 Documentation
Featured Solution
View Water & Wastewater Solution
Building a Complete Water or Wastewater Monitoring System?
See how remote data loggers, industrial sensors and cellular connectivity can be combined for distributed water and wastewater monitoring.
Power Architecture
Engineered for Years, Not Months
A sleep-first cycle, powered by a 38,000mAh dual-cell pack, is what makes multi-year deployment possible.
Sleep
Wake
Read Sensors
Store Data
Transmit
↩ back to Sleep
The EC-M12 is built around an ultra-low-power STM32L072 microcontroller that spends most of its life in sleep mode. It wakes on a schedule, takes a sensor reading, stores it with a real-time-clock timestamp, transmits over NB-IoT, LTE-M, or LoRaWAN, and returns to sleep - a cycle powered by a 38,000mAh dual-cell Li/SOCl2 battery pack designed for 5+ years of service.
Battery-life note: Actual service life varies with sampling frequency, transmission interval, cellular signal quality, sensor power demand and operating temperature.
Reference Design
System Architecture
A typical remote-monitoring path from field sensor to the customer's dashboard.
Field Sensors4-20mA · RS-485 · Digital · Strain Gauge
NORVI EC-M12STM32L072 · SIM7070 · Local Logging
Wireless NetworkNB-IoT · LTE-M · Optional LoRaWAN
Cloud / ServerYour Own Platform
DashboardRemote Data Visibility
Engineering Resources
Documentation & Downloads
Go directly to the document type needed for design, integration or commissioning.
Application Notes
Complete EC-M12 Library
Browse all currently published EC-M12 technical documents and application guides in one place.
View All EC-M12 Documentation
Configuration Support
Not Sure Which EC-M12 Configuration You Need?
Send us your sensor type, interface, reporting interval and connectivity requirement. NORVI can help identify the appropriate EC-M12 configuration for the application.
FAQs
Common Questions
Can't find what you're looking for? Our team is available for a free technical consultation.
A battery powered cellular data logger records field sensor measurements and transmits them over a cellular network without requiring mains power. The NORVI EC-M12 combines industrial sensor inputs, local microSD storage, an IP67 enclosure, and NB-IoT / LTE-M connectivity for long-term remote monitoring.
The SIM7070 modem supports 2G, Cat-M1 (LTE-M) and Cat-NB1 (NB-IoT) networks.
Yes. LoRaWAN is available as an optional long-range wireless connectivity option alongside cellular connectivity.
The EC-M12 uses a 38,000mAh battery pack built from two ER34615H Li/SOCl2 cells. A 5+ year service life is achievable under suitable low-duty-cycle logging profiles. Actual life depends on sampling frequency, transmission interval, network conditions, sensor load and operating temperature.
Inputs vary by model: dual 4-20mA analog, RS-485, dual digital, mixed digital plus 4-20mA / 0-10V analog, or strain-gauge input with excitation.
Model A is for 4-20mA sensors, Model B for RS-485 / Modbus instruments, Model C for digital or pulse inputs, Model D for mixed digital and analog signals, and Model E for strain-gauge or load-cell applications.
The EC-M12 has an IP67 enclosure rating for outdoor and industrial field deployment.
Yes. Model B provides RS-485, and NORVI application guides document Modbus RTU communication and transmitting Modbus data over MQTT.
Yes. The platform can be integrated with your own server or cloud environment rather than requiring a locked third-party cloud.
Start with the sensor interface: 4-20mA, RS-485, digital, mixed analog/digital or strain gauge. Compare the product cards above, or send NORVI your sensor type, reporting interval and communication requirements for assistance.
Get Started
Ready to Deploy Your Remote Monitoring Solution?
Talk to NORVI's engineering team about your application, or request a formal quote for your EC-M12 configuration.
Configuration Comparison
