---
title: "NORVI EC-M12-BC-C6-C-D – DATASHEET"
description: "The **EC-M12-BC-C6-C-D** is a rugged, IP67-rated IoT telemetry unit designed for reliable outdoor and remote monitoring applications. Powered by high-capacity non-rechargeable lithium batteries, it delivers years of autonomous operation even in harsh environments. Built on the ultra-low-power **STM32L072CZT6 MCU**, the…"
url: "https://norvi.io/docs/norvi-ec-m12-bc-c6-c-d-datasheet/"
updated: "2026-08-11"
category: "NORVI EC-M12 / EC-M12-BC-C6-C-D"
---

# NORVI EC-M12-BC-C6-C-D – DATASHEET

The **EC-M12-BC-C6-C-D** is a rugged, IP67-rated IoT telemetry unit designed for reliable outdoor and remote monitoring applications. Powered by high-capacity non-rechargeable lithium batteries, it delivers years of autonomous operation even in harsh environments.

Built on the ultra-low-power **STM32L072CZT6 MCU**, the device supports multi-network cellular connectivity for seamless data transmission. It also integrates directly with **2 × Analog Inputs (4–20 mA)** and **Digital Input interfaces**, making it ideal for utilities, environmental monitoring, agriculture, and industrial asset management.

1. **Rugged Outdoor Design**
   - **IP67 weatherproof enclosure** for reliable operation in rain, dust, and extreme outdoor environments
   - Industrial-grade connectors with cable gland for secure field deployment
2. **Cellular Connectivity**
   - Multi-band modem: **2G / Cat-M / Cat-NB (NB-IoT)**
   - Available with **SIM7070 module** for wide coverage and low-power IoT data transfer
3. **Power Supply**
   - **Two ER34615H lithium batteries**(19,000 mAh each)
   - Total capacity:**38,000 mAh**
   - Non-rechargeable, optimized for **multi-year, maintenance-free operation**
4. **System Functions**
   - Built-in **Reset Button**
   - **Battery Isolation Switch** (supports operation on USB power only)
   - **microSD storage expansion**
5. **Accessories**
   - Industrial **cable gland** connector for sealed field wiring

## Applications

- Smart agriculture (soil moisture & irrigation monitoring)
- Environmental monitoring (air & water quality)
- Utility metering (water, gas, energy)
- Industrial equipment monitoring
- Tank level & fuel monitoring

## Product Block Diagram

![EC-M12-BC-C6-C-D BLOCK DIAGRAM UPDATED](https://norvi.io/wp-content/uploads/2026/04/EC-M12-BC-C6-C-D-BLOCK-DIAGRAM-UPDATED-V2-834x1024.jpg)

## Technical Specifications

### Main

| Range of Product | NORVI SENSOR NODE |
| --- | --- |
| Product Type | Programmable Sensor Node |
| Certifications | EN 61131-2:2007 EN 61010-1:2010+A1:2019 EN IEC 61010-2-201:2018 2014/30/EU- Electromagnetic Compatibility (EMC) Annex III, Part B, Module C |
| Rated supply voltage | Built-in Battery LiSoCL |
| Communication | SIMCOM SIM7070 - 2G / NB-IoT |
| Inputs | 1 x Digital Input 2 x Analog Input |
| Sensor Power | 12V DC / 5V DC |
| Displays and Visual Indicators | Connectivity Indicator |

## Complementary

| Product Unified Code | EC-M12-BC-C6-C-D |
| --- | --- |
| Product Part Numbers | EC-M12-BC-C6-C-D |

## Mechanical Properties

![](https://norvi.io/wp-content/uploads/2026/04/Mechanical-Properties-M12-BC-C6-C-D-01.png)

![](https://norvi.io/wp-content/uploads/2026/04/Mechanical-Properties-M12-BC-C6-C-D-02.png)

| Enclosure | ABS + PolyCarbonate / IP67 |
| --- | --- |
| Mounting / Installation Method | Wall mount / Pole Mount |
| Terminal Type | M8 - 8 pin connector |
| Terminal Arrangement | ![](https://norvi.io/wp-content/uploads/2026/04/Terminal-Arrangement-M12-BC-C6-C-D-01.jpg) |
| Length | 146.00 mm |
| Height | 50.00 mm |
| Width | 89.99 mm |

## Environment

| IP degree of protection | IP67 |
| --- | --- |
| Operating altitude | 2000 meters |
| Operating Temperature | –40 °C to +85 °C |
| Storage Temperature | –45 °C to +90 °C |
| Shock resistance | Operating: 30 g, 11 ms half-sine; Non-operating: 50 g, 11 ms |
| Resistance to electrostatic discharge | Not Applicable |
| Resistance to electromagnetic fields | VBAT/GND: ±5 kV / ±10 kV Antenna: ±5 kV / ±10 kV USB: ±4 kV / ±8 kV UART: ±4 kV / ±6 kV Other pads: ±1 kV / ±2 kV |

## Battery Powered Devices

| Battery Nominal Voltage | 3.6V |
| --- | --- |
| Battery Capacity | 19000 mAh @ 2.0mA Drain |
| Chemistry of the Battery | Lithium Thionyl Chloride |
| Maximum Continuous Discharge Current | 150mA |
| Maximum Pulse Discharge Current | 300mA |
| Charging source maximum voltage | Not Rechargeable |

### Processing

| SOC / MCU | STM32L072CZT6TR |
| --- | --- |
| Flash Memory | 192KB Flash |
| ROM | 6 KB |
| SRAM | 20 KB |
| PSRAM | Not available |

## Peripherals

### microSD Card support

| Card Type | microSD |
| --- | --- |
| Interface | SPI |
| SD CARD CS | PB0 |
| MISO | PA6 |
| MOSI | PA7 |
| SCLK | PA5 |
| SD Detect | Not Implemented |

## INPUTS and OUTPUTS

### Analog Inputs

| Number of Analog Inputs | 2 |
| --- | --- |
| Analog Inputs Measurement Range | 4 - 20 mA |
| Terminal Arrangement | ![](https://norvi.io/wp-content/uploads/2026/04/Terminal-Arrangement-M12-BC-C6-C-D-02.jpg) |

### Digital Inputs

| Number of Digital Input | 1 |
| --- | --- |
| Digital Input Measurement Range | DI - SELECTION 1 -OFF 2 - 3.3V 3 - 5V 4 - 12V |

## Cellular Modem

| Modem | SIMCOM 7070 |
| --- | --- |
| Technology | LTE Cat-M1 NB-IoT (NB1/NB2) GSM/GPRS fallback (2G) |
| Coverage / Supported Bands | (B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B27/B28/B66) for Cat-M/NB, plus quad-band GSM (850/900/1800/1900 MHz). |
| Data Rate | LTE Cat-M1: up to 588 kbps DL / 1119 kbps UL NB-IoT: up to 26 kbps DL / 62.5 kbps UL GPRS: 85.6 kbps DL / UL |
| Power Control | PA1 - Active High |
| RX with MCU | PA2 |
| TX with MCU | PA3 |

## GPIO Map

| GPIO | Description |
| --- | --- |
| PA0 | Not Utilized |
| PA1 | GSM Power Control |
| PA2 | Modem TX with MCU |
| PA3 | Modem RX with MCU |
| PA4 | Power Enable |
| PA5 | SD Card SCLK |
| PA6 | SD Card MISO |
| PA7 | SD Card MOSI |
| PA8 | Not Utilized |
| PA9 | SCL |
| PA10 | SDA |
| PA11 | USB_N |
| PA12 | USB_P |
| PA13 | SWDIO |
| PA14 | SWCLK |
| PA15 | Not Utilized |
| PB0 | SD Card Chip Select |
| PB1 | Not Utilized |
| PB2 | Not Utilized |
| PB3 | Not Utilized |
| PB4 | Not Utilized |
| PB5 | Not Utilized |
| PB6 | Not Utilized |
| PB7 | Not Utilized |
| PC13 | Digital Input |