Milesight UC300 Series IoT Controller

The Milesight UC300 series is an IoT controller used for remote control and data acquisition from a diverse range of devices. It contains multiple I/O ports including analog, digital, relay out, serial and PT100RTD in. Transmission of the data to and from these ports is supported via either LoRaWAN or 3/4G Celular, depending on the US300 Controller selected.

The UC100 also supports multiple trigger conditions and actions that can be taken, even in the event that network communication is inactive.


  • Easy to connect with multiple wired sensors
  • Long LoRaWAN transmission distance up to 15 km with line of sight, or Cellular communication option
  • Multiple triggering conditions and actions
  • Embedded watchdog
  • Industrial metal case design with wide operating temperature range
  • Compliant with standard LoRaWAN gateways and network servers


Physical Characteristics
DimensionsTransceiver: 93 mm (h) x 70 mm (w) x 22 mm (d)
InstallationDesktop, Wall Mounting, DIN Rail Mounting
Environmental Characteristics
Operating Temperature-20C to +60C
Relative Humidity0% to 95% (non-condensing)
Ingress ProtectionIP30
Power Input5-24V/DC, 3.5mm Terminal Block
Data Interfaces
Interface Type3.5mm Terminal Block
Digital Inputs4x Opto-isolated Digital Inputs, 3-24VDC (pulse counter support)
Digital Outputs2x SPDT Relay Contact Rating: 3A@DC Max: 30 V or AC Max: 250 V
Analog Inputs1x 4~20 mA 3-wire, 12 bit
1x 4~20 mA 2-wire, 12 bit
1x 0~10 V 3-wire, 12 bit
1x 0~10 V 2-wire, 12 bit
1x PT100 RTD Input, 3-wire, 12 bit, -200C ~ 800C
1x PT100 RTD Input, 2-wire, 12 bit, -200C ~ 800C
Serial Ports1x RS232 (Transparent)
1x RS485 (Modbus RTU)
Configuration1x USB Type-C
Other Features
Indicators1x System LED, 1x ACT LED
Watchdog TimerStandard
Wireless Characteristics
TechnologyLoRaWAN4G LTE/3G/2G
Tx Power16dBm(868)/20dBm(915)/19dBm(470)-
Sensitivity-137dBm @300bps-
Work ModeUC501: OTAA/ABP Class A, Class C
UC502: OTAA/ABP Class A
Antenna Connector-1 50 Ω SMA Connector (Center PIN: SMA Female)
SIM-1 (Micro SIM-3FF)
OptionsMobile App via NFC, Remote Access, Internal USB-C

Ordering Information and Pricing
Part Number Model Number Description RRP
[A] Milesight UC300 Series LoRaWAN Controller
UC300-915M UC300-LW LoRaWAN IoT Controller, Multi-IO (1xRS232, 1xRS484, 4xDI, 2xDO, 2x4-20mA, 2x0-10V, 2xPT100 RTD), $253.00 C3
[B] Milesight UC300 Series 4G Controller
UC300-L05EU UC300-4G 4G IoT Controller, Multi-IO (1xRS232, 1xRS484, 4xDI, 2xDO, 2x4-20mA, 2x0-10V, 2xPT100 RTD), $352.00 C3