Milesight UC300 Multiple I/O interface, RS232, RS485 LoRaWAN AS923/AU915 IoT Controller
Features
The Milesight UC300 series is an IoT controller used for remote control and data acquisition from diverse devices. It contains multiple I/O interfaces including analog input, digital input, relay output, serial port, PT100RTD input, which support remote device data transmission via LoRaWAN® or 3G/4G networks. The UC300 series also supports multiple trigger conditions and actions which can work autonomously even if the network drops. Combined with Milesight IoT Cloud solution, it can monitor and control remote devices via web server or mobile App easily. Adopting industrial design and IP30 metal case, the UC300 is widely used in indoor applications like smart factory, building automation, etc.
- Easy to connect with diverse wired devices through DIO/AI/RS232/RS485/PT100RTD input interfaces
- Support LoRaWAN® communication
- Multiple triggering conditions and actions
- Embedded watchdog for device working stability
- Industrial metal case design with wide operating temperature range
- Compliant with standard LoRaWAN® gateways and network servers
- Quick and easy management with Milesight IoT Cloud solution
- Easily onboard and monitor 100's of LoRaWAN Gateways with the Scopious onboarding tool (Coming soon!)
Rich Industrial Interfaces
Integrating multiple and various kinds of industrial interfaces for monitoring and controlling field sensors or devices simultaneously.
6 × Analog Inputs
4 × Digital Inputs
2 × Digital Outputs
1 × RS232 + 1 × RS485
Expanded RS485 Interface Connectivity
The RS485 interface of the UC300 allows for connectivity with 32 channels, enabling the connection of 32 field sensors or devices. This feature establishes the UC300 as a central hub for comprehensive sensor data management and industrial IoT automation.
Note: The cellular version currently supports only 16 channels.
Temperature Transmitter
Besides the 4~20 mA & 0~10 V type analog interfaces, the UC300 firstly adopts 2 RTD inputs for accepting and converting 2/3 wires PT100 sensors' resistance signal into 4-20 mA current signal with a range from -200°C to 800°C.
Intelligent Trigger System
Users are able to set up 16 commands based on custom trigger conditions & actions to realize intelligent tasks like timing data collection.
Autonomous Operation
Milesight UC300 IoT controller can execute the commands autonomously even when the network is unavailable.
LoRaWAN® & 4G LTE
The UC300 IoT Controller supports global LoRaWAN® frequency plans or 4G LTE as backhaul connectivity to meet different projects.
Flexible Cloud Integration
Support TCP/UDP/MQTT protocol, UC300 IoT controller is compatible with multiple Cloud platforms such as AWS (for cellular version only) and Milesight IoT Cloud.
Specifications
Technical Specifications
| Manufacturer's Code | UC300-915M |
|---|---|
| Technology | LoRaWAN® |
| LoRaWAN Antenna Connector | 1 × 50 O SMA Connector (Center PIN: SMA Female) |
| Frequency | AU915/AS923 |
| Tx Power | 22dBm |
| Sensitivity | -137dBm @300bps |
| Mode OTAA/ABP | Class C |
| Application Mode | TCP/UDP/MQTT/AWS/Milesight IoT Cloud/SMS |
| Interface Type | 3.5mm Terminal Block |
| IO Ports | 4 × DI + 2 × DO |
| Digital Input | Opto-isolated Digital Inputs, 3-24VDC (pulse counter support) |
| Digital Output | SPDT Relay Contact Rating: 3A @ DC Max: 30 V or AC Max: 250 VSerial Port |
| Ports | 1 × RS232 + 1 × RS485 |
| Baud Rate | 1200~115200 bps |
| Protocol | Transparent (RS232), Modbus RTU (RS485) |
| Analog Input Ports | 2 × 4~20 mA + 2 × 0~10 V |
| Resolution | 12 bit |
| Analog Input (RTD) Ports | 2 × PT100 RTD Input |
| Input Connections | 2, 3-wire |
| Resolution | 12 bit |
| Range | -200°C ~ 800°C |
| Configuration Port | 1 × Type-C |
| LED Indicators | 1 × System, 1 × ACT |
| Built-in | Watchdog, Timer |
| Power Connector | 3.5 mm Terminal Block |
| Power Supply | 5-24 VDC |
| Color & Material | Black, Metal |
| Ingress Protection | IP30 |
| Operating Temperature | -20°C ~ 60°C (-4? to +140?) |
| Relative Humidity | 0% ~ 95% (non-condensing) at 25°C/77? |
| Dimensions | 93 × 70 × 22 mm |
| Installation | Desktop, Wall Mounting, DIN Rail Mounting |
| Brand | Milesight |
|---|---|
| Product Type | Computers & Tablets > Industrial PCs & IoT > IoT Gateways |
| Weight | 0.5 kg |
Shipping Information
- Free NZ-wide shipping on orders over $299
- Standard delivery 2–5 business days
- Rural delivery may take an additional 1–2 days
- Same-day dispatch for orders placed before 2pm (weekdays)
Returns Policy
- 7-day returns on unused items in original packaging
- Faulty or damaged products covered under warranty
- Contact our support team to initiate a return







