The One Gateway Built for Every Building
The Milesight EG71 Building IoT Gateway is a new generation of edge IoT gateway designed specifically for system integrators, BMS engineers, and facility managers who need to unify the wired and wireless ecosystems inside a modern building. Where most gateways speak one or two protocols, the EG71 bridges them all — Modbus, BACnet, KNX, M-Bus, LoRaWAN®, and direct I/O — in a single compact, DIN-rail-mounted device.
For Building Management System retrofits and new construction alike, this is the difference between deploying three or four separate gateways or just one. Built around a quad-core 1.5 GHz ARM Cortex-A53 processor with 2 GB RAM and 32 GB storage, the EG71 handles up to 2,000 end devices and 20,000 data points while running local automation logic — so HVAC, lighting, and energy systems keep operating even when the cloud connection drops.
One edge gateway — six protocols, three backhaul options (Ethernet / Wi-Fi / 4G LTE), 8-channel LoRaWAN® radio, 19 onboard I/O interfaces, and full secondary-development support via Python, Node-RED, and Docker. Ideal for hotels, commercial buildings, campuses, and industrial facilities.
Solving Real BMS Integration Headaches
Most building integration projects fail or run over budget for the same handful of reasons: too many protocols, too many gateways, fragile cellular dependence, and rewiring that's prohibitively expensive in retrofit scenarios. The EG71 is engineered against each of those pain points.
Protocol fragmentation across HVAC, lighting & metering
Each subsystem speaks its own dialect — Modbus, BACnet, KNX, LoRaWAN, M-Bus — requiring separate gateways and complex bridging.
One gateway, every protocol
Native RS485 (Modbus RTU + BACnet MS/TP), KNX/TP1, M-Bus, LoRaWAN®, plus Modbus TCP and BACnet/IP — all in a single device.
Network outages bring building services to a halt
Cloud-dependent automation fails the moment cellular or internet drops — and so does HVAC, lighting, and tenant comfort.
Edge intelligence with local control logic
Automation runs on-device via Node-RED or Python. Building functions keep operating during cloud or WAN outages.
Retrofit projects can't justify rewiring costs
Pulling new cable through existing buildings is expensive, disruptive, and often architecturally impossible.
Wireless-first retrofit ready
Built-in 8-channel LoRaWAN® radio plus Wi-Fi and 4G backhaul. Add hundreds of wireless sensors without pulling new cable.
Specifications at a Glance
The EG71 packs industrial-grade hardware into a 123 × 90 × 36 mm form factor that mounts on a DIN rail or directly to a wall. Below are the headline specs every system integrator needs to know — full datasheet available on request.
Our engineering team can supply the complete EG71 datasheet, installation guide, and HTTP / MQTT integration manual. Just get in touch and we'll send everything across.
Edge Intelligence Designed for the Field
A modern BMS cannot tolerate cloud-only architectures. When the WAN goes down — and it always does, eventually — HVAC, lighting, and energy systems still need to run. The EG71 keeps the building running by processing data and executing control logic locally on the device.
High-Performance Edge Platform
Quad-core 1.5 GHz processor with 2 GB RAM and 32 GB storage. Handles 2,000 end devices and 20,000 data points without performance degradation.
Python, Node-RED & Docker
Secondary development is first-class. Build custom BMS logic in Node-RED's visual editor, script in Python, or deploy containerised apps with Docker.
Local Automation, No Cloud Dependency
Control logic executes on-device with sub-second latency. Direct actuator control via 3 relays and 4 analog outputs at the edge.
Triple-Backhaul Redundancy
Ethernet · Wi-Fi · 4G LTE with automatic failover. Data keeps flowing to your cloud or BMS even when a primary link fails.
Designed for Installer Productivity
Built to Integrate With Existing Building Systems
The EG71 isn't trying to replace your existing Building Management System — it's designed to work alongside it. By converting field-level data into the standard building protocols that supervisory systems already speak, EG71 lets system integrators connect new and legacy devices without ripping out current architecture.
Mainstream BMS Compatibility
Tested and confirmed to integrate with the BMS platforms that dominate commercial real estate, including Siemens, Johnson Controls, Schneider EcoStruxure EBO, Tridium Niagara 4, Trane Tracer, EasyIO Neo, and FIN Framework. Whether the building runs on a Tier-1 BMS or an open Haystack-based architecture, EG71 fits in.
Northbound Data Forwarding
Field data can be pushed upstream via MQTT(s), HTTP(s), BACnet/IP, Modbus TCP, or Modbus RTU over TCP, giving you full flexibility on how you connect to supervisory platforms, third-party dashboards, or any standard IoT cloud — including AWS IoT, Azure IoT Hub, ThingsBoard, and the Milesight IoT Cloud.
Enterprise-Grade Security
For building infrastructure handling sensitive operational data, the EG71 ships with five VPN options (OpenVPN, IPsec, PPTP, L2TP, WireGuard), configurable firewall rules, multi-level user authentication, and standard LoRaWAN AES-128 end-to-end encryption. This aligns with the operational-technology security expectations of the EU NIS2 directive and emerging Cyber Resilience Act requirements.
Real-World Deployment Scenarios
The same EG71 hardware fits multiple smart-building use cases. Here's where it earns its place in real deployments across Europe and the Middle East.
Commercial Office & Tower Retrofits
Add wireless occupancy, IAQ, and energy-metering sensors to existing BACnet/Modbus BMS networks without disruptive rewiring.
Hotels & Hospitality
Per-room HVAC control, guest occupancy detection, and energy submetering — one gateway per floor handles hundreds of devices.
Campuses & Multi-Building Sites
Universities, hospitals, and corporate campuses can deploy a fleet of EG71s managed centrally via the Milesight Development Platform.
Industrial & Facility Management
Aggregate Modbus PLC data, KNX lighting, and LoRaWAN environmental sensors into one northbound feed for facility-management platforms.
Energy & HVAC Optimisation
Run Node-RED automation flows to trim HVAC operation based on occupancy, outdoor temperature, and tariff schedules — locally, in real time.
Smart Retail & Chain Stores
A single EG71 per store handles in-store sensors, refrigeration monitoring, and energy data — uniform deployment across hundreds of sites.
Frequently Asked Questions
The most common questions from system integrators and BMS engineers evaluating the EG71.
How many devices can a single EG71 manage?
The EG71 supports up to around 2,000 LoRaWAN end devices (based on 10-minute uplink intervals) and 20,000 data points total. On the wired side, each RS485 port handles up to 128 Modbus or BACnet MS/TP devices (256 across both ports), plus 63 KNX devices and 20 M-Bus devices when those interfaces are in use.
Can the EG71 replace my existing BACnet gateway and LoRaWAN gateway?
Yes — that's exactly its design intent. The EG71 is a full 8-channel LoRaWAN® network gateway and simultaneously functions as a multi-protocol BMS gateway with BACnet/IP, BACnet MS/TP, Modbus RTU, Modbus TCP, KNX/TP, and M-Bus. Most retrofit projects can consolidate two or three separate devices into a single EG71.
Which LoRaWAN frequency band should I order for Europe?
For Europe and the Middle East, choose the EU868 band variant — it's compliant with ETSI regulations across the EU, UK, and most MENA countries. The EG71 also supports US915, AS923-1/2/3/4, AU915, IN865, RU864, KR920, and CN470 if you're shipping to other regions. If you're not sure which band fits your country, our engineering team can advise.
Does the EG71 work with non-Milesight LoRaWAN sensors?
Yes. The EG71 is a standards-compliant LoRaWAN gateway (Class A/B/C, V1.0 and V1.0.2) and works with any LoRa Alliance–certified sensor on the matching frequency band. The NFC quick-pairing feature is Milesight-specific, but device onboarding via Milesight Development Platform or ChirpStack works the same for third-party devices.
How is it powered, and can it run on PoE?
The EG71 supports three power options: 24V DC or AC via terminal block, 802.3af PoE on the ETH1 port, or 5V/3A via USB Type-C. Typical consumption is 8.2 W. Note: when powered via USB only, the M-Bus and universal inputs do not operate — use terminal block or PoE for full functionality.
Is the EG71 suitable for outdoor or harsh-environment installation?
The EG71 is rated IP30 and designed for indoor installation inside electrical panels, control cabinets, or technical rooms. Its operating range is -40 °C to +60 °C. For outdoor or wet environments, choose the Milesight UG67 (IP67-rated outdoor LoRaWAN gateway) instead — our team can help you match the right gateway to the deployment.
Why Buy the EG71 from shopioT
We're a Milesight authorised distributor based in Europe, supplying system integrators across the EU and Middle East. Beyond just shipping the hardware, we add the layers that make a real project go smoothly.
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