Milesight UC300 Cellular 4G LTE Industrial IoT Controller

The Milesight UC300 Cellular is a powerful industrial 4G LTE IoT controller designed for remote monitoring, data acquisition and automation of industrial equipment and field devices.

Combining multiple digital and analog interfaces with cellular connectivity, the UC300 enables the integration of sensors, meters, actuators and industrial systems into a centralized IoT monitoring and control platform.

Unlike the LoRaWAN version, the UC300 Cellular communicates directly through a mobile network, using a compatible SIM card and cellular data service. This makes it suitable for remote installations where Ethernet or LoRaWAN network infrastructure is unavailable.

The controller features 4 digital inputs, 2 relay outputs, 6 analog inputs, RS485 and RS232 communication interfaces, offering flexibility for a wide range of industrial applications.

Its 4 digital inputs can monitor the status of external switches, alarms and equipment, while also supporting pulse-counting applications with compatible devices.

The 2 relay outputs allow remote or automatic control of connected electrical equipment, such as pumps, valves, contactors, alarms and control circuits, within the relay electrical ratings.

The 6 analog inputs consist of:

• 2 × 4–20 mA inputs for compatible industrial transmitters.

• 2 × 0–10 V inputs for analog sensors and automation signals.

• 2 × PT100 inputs for temperature monitoring with external RTD probes.

The integrated RS485 interface supports Modbus RTU, enabling communication with compatible energy meters, industrial sensors, monitoring equipment and Modbus-enabled devices.

An additional RS232 interface allows integration with suitable serial communication equipment.

For remote data transmission, the UC300 Cellular supports 4G LTE Cat 1 connectivity, providing direct communication with IoT platforms and remote servers. Network compatibility and fallback technologies depend on the selected regional model and local mobile operator.

The controller supports integration using MQTT and TCP/UDP communication, allowing data to be transferred to compatible third-party systems and industrial IoT platforms.

It can also be used with compatible Milesight IoT Cloud and AWS IoT Core integrations, subject to the selected configuration and service requirements.

One of its key advantages is the built-in IF–THEN automation engine, enabling the controller to perform local actions based on input conditions without requiring continuous cloud connectivity.

For example, the UC300 can activate a relay when a connected temperature sensor exceeds a defined threshold, or control equipment based on digital input states and other configured conditions.

This local automation capability helps maintain essential control functions during temporary cellular communication interruptions.

Configuration is performed through the USB Type-C interface using Milesight ToolBox, providing convenient access to communication settings, I/O configuration and automation rules.

The controller is designed for industrial installations, featuring a metal enclosure, a wide operating temperature range and flexible mounting options.

It supports 5–24 VDC terminal power input and 5 VDC USB Type-C power, making it suitable for integration into existing electrical and automation cabinets.

With its combination of 4G LTE connectivity, versatile I/O interfaces, Modbus RTU communication and local automation, the Milesight UC300 Cellular is an ideal solution for industrial monitoring, smart infrastructure and remote equipment control.

Important: The UC300 Cellular is a controller and data acquisition device, not a complete monitoring system. External sensors, SIM card, cellular data service and suitable power supply may be required depending on the installation.

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🔑 Key Features

📡 4G LTE Cellular Connectivity – Direct communication over compatible mobile networks without a LoRaWAN gateway.

🔌 4 Digital Inputs (DI) – Monitor switches, alarms, equipment status and pulse signals.

⚡ 2 Relay Outputs (DO) – Remote and automatic switching of compatible external devices.

📊 6 Analog Inputs – Flexible integration with industrial measurement equipment.

🔄 2 × 4–20 mA Inputs – Compatible with industrial pressure, level, flow and other analog transmitters.

📈 2 × 0–10 V Inputs – Support standard analog voltage signals.

🌡️ 2 × PT100 Inputs – Temperature measurement using compatible external RTD probes.

🔗 RS485 Modbus RTU – Integration with industrial meters, sensors and Modbus-compatible equipment.

🔌 RS232 Interface – Communication with compatible serial devices.

☁️ MQTT & TCP/UDP Communication – Integration with remote servers and third-party IoT platforms.

🌐 Cloud Integration – Compatible Milesight IoT Cloud and AWS IoT Core connectivity options.

⚙️ IF–THEN Automation – Local rule-based control without continuous cloud connectivity.

📱 Milesight ToolBox Configuration – Convenient setup through USB Type-C.

🔋 External DC Power – Supports 5–24 VDC terminal input or 5 VDC USB power.

🏭 Industrial Metal Enclosure – Durable construction for professional installations.

🌡️ Wide Operating Temperature – −20°C to +60°C.

🛠️ Flexible Installation – DIN rail, wall or desktop mounting.

🚫 No LoRaWAN Gateway Required – Cellular network connectivity through a compatible SIM.

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🛠 Applications

🏭 Industrial Automation – Monitor industrial equipment and execute local control rules.

💧 Water & Wastewater Management – Monitor pumps, tank levels, pressure transmitters and remote water infrastructure.

⚡ Energy Monitoring – Connect compatible Modbus electricity meters for remote data acquisition.

🏢 Building Management Systems (BMS) – Integrate temperature sensors, digital signals and control circuits.

🌡️ Temperature Monitoring – Connect PT100 probes for industrial temperature applications.

🚜 Smart Agriculture – Monitor irrigation equipment, pumps and environmental sensors.

🛢️ Tank & Silo Monitoring – Integrate 4–20 mA level transmitters and automate external equipment.

🚨 Alarm & Security Systems – Monitor dry contacts and trigger compatible alarm outputs.

🏗️ Remote Infrastructure Monitoring – Connect field devices in locations without wired network infrastructure.

🚦 Smart City Applications – Integrate monitoring and control functions into municipal IoT projects.

🔧 Remote Equipment Control – Control contactors, valves and other compatible electrical devices.

📡 Industrial IoT Data Acquisition – Collect and transmit measurements from different industrial interfaces.

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📦 Package Includes

• 1 × Milesight UC300 Cellular Industrial IoT Controller

Not included unless explicitly specified:

• SIM card or cellular data subscription

• External industrial sensors or PT100 probes

• External relays, contactors or actuators

• IoT platform subscription

• Installation and commissioning services

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📥 Product Downloads

📄 Datasheet
📖 User Guide
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🎥 Product Video