Design, Support & Management of Metering Systems

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MacREJ 5 Advanced Gas Data Logger
Main Functional Characteristics
- Operates on 4G LTE and 2G networks with an optional GSM modem
- Supports NFC, optical interface, and dual RS-485/RS-232 connections
- 4” backlit graphical display with customizable widget views
- Intrinsically safe, ATEX-certified for Zone 0, Zone 1, and Zone 2 operations
- Works with internal or external pressure sensors for flexible measurement
- Supports NAMUR and SCR encoders for gas meter integration
- Configurable dual LF pulse inputs for advanced monitoring
- Durable polycarbonate or aluminium housing with IP-rated protection
About MacREJ 5
It supports Modbus RTU MASTER communication, NAMUR and SCR encoders, and dual LF pulse inputs, allowing seamless integration with gas meters and external sensors. The tamper-resistant housing is available in polycarbonate or aluminium, ensuring long service life and easy installation. Standard lithium D-size batteries provide low operating costs with reliable performance.
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The MacREJ 5 data logger is designed for demanding gas metering applications where secure data acquisition, flexible communication, and hazardous area compliance are critical. It features integrated GSM connectivity supporting 4G LTE and fallback to 2G, along with NFC, optical, RS485, and RS232 interfaces for versatile communication.
The 4” backlit graphical display provides intuitive access to system diagnostics and allows customizable widget views to track daily and monthly usage as bargraphs. The device is ATEX-certified for explosion-hazardous zones up to Zone 0, making it ideal for critical infrastructure monitoring.
It supports NAMUR and SCR encoders, Modbus RTU MASTER communication, and dual LF pulse inputs, enabling seamless integration with gas meters and sensors. The robust polycarbonate or aluminium housing and illuminated terminals ensure durability and easy installation in field conditions.
ATEX Certification – Zone 0, Zone 1, Zone 2 Compliance
EN 60529 Compliance – IP-rated Outdoor Housing Protection
Version 2: 202 × 167 × 93 mm / 3.5 kg
Version 2: Aluminium

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