Gateway/Controller MikroTik KNOT LR8G — Single-Band 2,4 GHz, 100 Mbit/s Ethernet, QCA9531 650 MHz, RS-485, NanoSIM

The MikroTik KNOT LR8G kit is a compact, ready-to-use gateway designed for LoRa applications. It is engineered to provide affordable and reliable connectivity even in remote locations. It supports LTE CAT-M1 and NB2, Bluetooth 5.2, 2.4 GHz WiFi, GPS, and comes equipped with two Ethernet ports (1x PoE-in, 1x PoE-out), making it a flexible solution for any IoT deployment.

Mobile internet connectivity via CAT-M1 and NB2 allows significant cost savings while enabling remote monitoring and management of devices without the need for expensive data plans or full LTE coverage.

Whether you are monitoring critical data in hospitals, managing vending machines in shopping malls, or collecting sensor data in the middle of fields — the KNOT LR8G ensures continuous connectivity.

Key Features

• Concurrent GPS and LTE CAT-M connection

Track moving assets using GPS combined with LTE CAT-M1. An ideal solution for service vehicles, containers, or other mobile equipment.

• Versatile power options

Choose between powering via PoE, DC jack, or MicroUSB — plus you can power additional devices through the second Ethernet port with PoE-out functionality (max. 650 mA for voltage <30 V, max. 450 mA for voltage >30 V).

• SMA connectors for all main interfaces

Easy antenna connection for LTE, GPS, and LoRa.

• Improved LoRa reception at 868 MHz

Enhanced sensitivity for stronger signal and longer range, even in interference-heavy environments.

• Lower price, same quality and reliability

A cost-effective solution for large-scale deployments without compromising performance.

• Powered by RouterOS v7

Provides full control, user scripting, and advanced routing features.

Practical Use Cases

• Hospital equipment monitoring – attach Bluetooth beacons to critical devices, deploy KNOT LR8G in monitored areas, and maintain real-time inventory tracking via GPS and LTE CAT-M.
• Cold chain temperature control – use wired Modbus sensors to monitor temperature and humidity inside refrigerated containers. KNOT converts Modbus data to TCP and securely transmits it via MQTT or HTTPS.
• Industrial automation – connect legacy wired sensors and actuators to the cloud. With DIN rail mounting capability, KNOT easily integrates into industrial cabinets and manufacturing environments.

With a power consumption of only 6 W and compact dimensions (122 x 87 x 26 mm), the KNOT is the perfect choice for installations requiring space and power savings while working within a limited budget — without sacrificing performance.

Package Contents

• Device
• 24 V / 1.2 A power adapter
• DIN rail mount
• Wall mount kit

How to use

Install the KNOT LR8G in an indoor location with adequate ventilation and within range of wired or wireless devices you intend to serve. Connect Ethernet devices to the RJ-45 ports and insert a NanoSIM if cellular connectivity is required. Use the RS-485 interface to integrate serial sensors or controllers, following the wiring and termination practices recommended for RS-485 networks. Configure network settings and routing via the device management interface to enable Wi‑Fi, Ethernet bridging or gateway functions appropriate to your deployment.

Recommendations

Place the unit where the 2.4 GHz signal is unobstructed by large metal structures. For reliable RS-485 communication, use twisted-pair cabling and proper termination. If using cellular connectivity, verify signal availability for NanoSIM and choose an appropriate data plan. Observe the IP20 indoor protection rating and avoid exposure to moisture or direct outdoor mounting.