What is the NORVI EC-M12?

It's an industrial IP67 battery-powered programmable IoT data logger with NB-IoT, LTE-M, and optional LoRaWAN cellular connectivity, built for long-term remote monitoring.

What cellular networks does the EC-M12 support?

It uses a SIM7070 modem supporting 2G, Cat-M1 (LTE-M), and Cat-NB1 (NB-IoT) networks.

Does the EC-M12 support LoRaWAN?

Yes, LoRaWAN is available as an optional long-range wireless connectivity option alongside cellular.

How long does the battery last?

The EC-M12 uses a 38,000mAh battery pack (2 x ER34615H Li/SOCl2 cells) engineered for 5+ years of service life under typical logging use.

Is the battery rechargeable?

No. The ER34615H Li/SOCl2 cells are non-rechargeable and designed to be replaced after their multi-year service life.

What inputs does the EC-M12 support?

Inputs vary by model: dual 4-20mA analog (Model A), RS-485 (Model B), dual digital (Model C), mixed digital + analog 4-20mA/0-10V (Model D), or strain gauge with 5V/10V excitation (Model E).

What is the difference between EC-M12 Model A, B, C, D, and E?

Each model is built for a different sensor interface: Model A for 4-20mA analog sensors, Model B for RS-485/Modbus devices, Model C for digital/pulse inputs, Model D for mixed digital and analog wiring, and Model E for strain gauge/load cell sensors.

What enclosure rating does the EC-M12 have?

It has an IP67 enclosure rating, making it weatherproof and suitable for outdoor and industrial deployment.

What microcontroller powers the EC-M12?

An STM32L072 ultra-low power microcontroller.

Does the EC-M12 support Modbus?

Yes. Model B provides an RS-485 interface, and NORVI's application guides document Modbus RTU communication and transmitting Modbus data over MQTT.

Can the EC-M12 connect to my own cloud platform?

Yes. The firmware is built to connect to your own server or platform rather than a locked third-party cloud.

Does the EC-M12 support MQTT?

Yes, MQTT is documented in NORVI's application guides for transmitting logger data, including RS-485 Modbus data over MQTT.

How much data can the EC-M12 store locally?

It includes a microSD card slot supporting cards up to 256GB for local, expandable data storage.

Does the EC-M12 have a real-time clock?

Yes, it has an inbuilt real-time clock for precision timestamping of logged data.

What applications is the EC-M12 used for?

Common applications include water level monitoring, agricultural data logging, pressure data acquisition, and environmental monitoring.

Is white labelling available for the EC-M12?

Yes, white labelling is available, along with bulk order discounts for larger deployments.

Where can I buy the NORVI EC-M12?

Through the official NORVI store at shop.norvi.lk, or by requesting a quote directly from NORVI for bulk/OEM orders.

How do I choose the right EC-M12 model for my project?

Match your sensor type to the model I/O in the product comparison above, or contact NORVI's engineering team for a free consultation on your specific application.

What is a battery powered cellular data logger?

A battery powered cellular data logger collects sensor measurements, stores them locally, and transmits them over cellular networks without relying on mains power. The NORVI EC-M12 is an industrial IP67 implementation with NB-IoT, LTE-M and optional LoRaWAN connectivity.

What cellular networks does the EC-M12 support?

The SIM7070 modem supports 2G, Cat-M1 (LTE-M) and Cat-NB1 (NB-IoT) networks.

Does the EC-M12 support LoRaWAN?

Yes. LoRaWAN is available as an optional long-range wireless connectivity option alongside cellular connectivity.

How long does the battery last?

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.

What inputs does the EC-M12 support?

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.

What is the difference between Models A, B, C, D and E?

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.

What enclosure rating does the EC-M12 have?

The EC-M12 has an IP67 enclosure rating for outdoor and industrial field deployment.

Does the EC-M12 support Modbus and MQTT?

Yes. Model B provides RS-485, and NORVI application guides document Modbus RTU communication and transmitting Modbus data over MQTT.

Can the EC-M12 connect to my own cloud platform?

Yes. The platform can be integrated with your own server or cloud environment rather than requiring a locked third-party cloud.

How do I choose the right EC-M12 model?

Start with the sensor interface: 4-20mA, RS-485, digital, mixed analog/digital or strain gauge. Use the product configuration cards above, or send NORVI your sensor type, reporting interval and communication requirements for assistance.

Battery Powered Data Logger & Cellular Data Logger

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

NORVI EC-M12 internal battery pack and PCB view

Battery Architecture

Multi-Year Runtime, Built In

Dual ER34615H Li/SOCl2 cells provide a combined 38,000mAh capacity for long-duration, low-duty-cycle field deployments.

2× Li/SOCl238,000mAh

Cellular Communication

Connect Beyond the Site

SIM7070 connectivity supports 2G, Cat-M1 and Cat-NB1 networks, with optional LoRaWAN for suitable low-power deployments.

NB-IoTLTE-MLoRaWAN option

M8 connector for NORVI EC-M12 sensor wiring

Industrial Inputs

Field Sensor Ready

Choose 4-20mA, RS-485, digital, mixed analog/digital or strain-gauge I/O to match the application.

NORVI EC-M12 pole-mounted IP67 enclosure

Rugged Housing

IP67 Field Protection

Dust and water protection for outdoor, agricultural and industrial installations.

NORVI EC-M12 microSD storage and real-time clock

Local Data Logging

Store Before You Send

RTC timestamping and microSD storage up to 256GB provide local backup between transmissions.

NORVI EC-M12 connected to a customer cloud dashboard

Remote Monitoring

Your Data. Your Platform.

Move field readings to your own server or cloud platform over cellular or LoRaWAN without routine manual downloads or a locked ecosystem.

SensorEC-M12NetworkYour Cloud

Order Quantity	Lead Time	Notes
Under 10 units	2-3 wks	Standard processing
10 - 100 units	4-5 wks	Mid-volume batch
Above 100 units	6+ wks	Contact us for slot

Battery Powered Data Logger for Cellular Remote Monitoring

Why Choose the NORVI EC-M12

Rugged Industrial Design

Long Battery Life

Secure Connectivity

Cloud Ready

Easy Deployment

Reliable Operation

Choose the Right EC-M12 Configuration

Platform Technical Specifications