Reliable Connectivity for Smart Monitoring
Sentra provides rugged, high-performance 4G gateways designed to ensure continuous data flow from field sensors to your monitoring platforms. By combining resilient hardware, edge processing, and cellular connectivity, our 4G Rugged Gateway guarantees that critical structural health and geotechnical data reaches engineers in real time, enabling faster, data-driven decisions.
4G Rugged Gateway
Collects and synchronizes data from multiple remote sensing nodes
Supports LoRa, cellular, and Ethernet links
Performs local validation and preprocessing
Enables over-the-air configuration, diagnostics, and firmware updates
Overview
The Sentra 4G Rugged Gateway collects and forwards data from remote sensors, including tiltmeters, GNSS meters, and vibration meters, to cloud platforms or local servers. Designed for harsh environments, it ensures reliable communication even in areas without stable wired networks. Built-in edge intelligence processes events and manages data locally when connectivity is limited, guaranteeing seamless monitoring of infrastructure, tunnels, slopes, and industrial assets.
What's Included
Field-ready hardware and software for fast, reliable connectivity
- Rugged IP68 gateway with 4G LTE and optional Ethernet/Wi-Fi interfaces
- Edge computing capability for local data processing and buffering
- Mobile and web tools for easy configuration and monitoring
- Flexible power options for battery or mains operation
- Automatic firmware updates and remote management
- Alert mode
- Cloud integration with MQTT, REST API, or FTP supports
Why Choose Sentra 4G Rugged Gateway?
Uninterrupted Data Flow for Critical Monitoring Projects
Reliable Connectivity
Ensures uninterrupted data transfer from remote sensors
Edge Intelligence
Processes events locally for faster alerts and reduced latency
Durable Design
Weatherproof and robust for harsh field conditions
Seamless Integration
Compatible with Sentra monitoring systems and third-party platforms
Main technical specifications
| Radio communication protocol | LoRa/LoRaWAN |
|---|---|
| Backhaul connectivity | 4G Worldwide module with 3G/2G fallback; Ethernet (RJ45) |
| Antenna | Integrated internal antennas GPS, 4G, LoRa (peak gain=2,6dBi) Optional external antenna |
| Supported unlicensed bands | 863-874.4MHz (EMEA, India), 902-928MHz (North America), 915-928MHz (APAC, Latin America) |
| Rx sensitivity | -141 dBm (SF12) |
| Weather protection | IP68 |
| Operating temperature | -40°C +60°C |
| Local access | Via USB-C port |
| Device interfaces | |
| Ethernet | Waterproof RJ45 |
| Cellular | Waterproof Mini SIM Card slot |
| Power requirements | |
| Power options | PoE both mode A and mode B (802.3 af specifications) 5V through USB-C PoE injector for indoor use included in the kit |
| Mean power consumption | 4.5 W |
Got Questions? We've Got Answers.
It collects and transmits data from field sensors like tiltmeters, GNSS meters, and vibration meters to cloud or local servers in real time.
It uses 4G LTE networks with optional Ethernet/Wi-Fi backup and local buffering to prevent data loss during connectivity interruptions.
Designed for harsh outdoor or industrial conditions, the gateway is IP68-rated and can withstand dust, moisture, and temperature extremes.
Supports multiple power options, including mains, battery, or solar setups, depending on deployment requirements.
Yes — supports MQTT, REST API, FTP, and direct integration with SCADA, dashboards, or asset management platforms.
The gateway can manage multiple field devices and sensor types, aggregating data and forwarding it efficiently to the cloud or local servers.