LoRaWAN Sensor-Hub Multi-Interface I/O Controller – Milesight UC502 868M

The Milesight UC502 868M is a rugged LoRaWAN sensor-hub multi-interface I/O controller (EU868) for harsh outdoor deployments (IP68, M12), connecting GPIO, analog (4–20 mA/0–10 V), RS232/RS485 (Modbus RTU), and SDI-12 sensors. UC502 supports OTAA/ABP Class A, runs on 3× 9000 mAh replaceable ER26500 Li-SOCl2 batteries. Internal antenna.

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2 in stock

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Product Description Technical Details

The Milesight UC502 868M is a multi-interface LoRaWAN controller designed to aggregate multiple sensor types at one site and deliver the data over EU868 LoRaWAN. It’s built as a practical sensor hub: collect data from industrial I/O, log key readings locally, and forward them to your LoRaWAN network server or IoT platform—reducing wiring effort and simplifying deployments.

Its interface mix covers common real-world field integrations:

SDI-12 for environmental instrumentation (weather, hydrology, agriculture)

RS485 Modbus RTU and RS232 for industrial retrofit devices

4–20 mA / 0–10 V analog inputs for process sensors

GPIO for digital I/O and pulse counting (meter reading)

This version is without EA, meaning it operates with an internal antenna—useful when you want a sealed installation without an external SMA antenna.

For remote outdoor sites, UC502 focuses on long service intervals and robustness: IP68 (1 m / 7 days), M12 A-coded connector, and power via 3× replaceable ER26500 Li-SOCl2 batteries (9000 mAh each) or 5–24 VDC through M12. Data integrity features help keep datasets complete under intermittent connectivity: threshold alarms, change alarms, local storage (600 entries), data retrievability, and retransmission. It also supports analog input value conversion to simplify downstream integration.

Concrete real-world examples:

River and level monitoring: connect SDI-12 sensors and trigger alarms on thresholds.

Weather & environmental stations: aggregate SDI-12 instruments plus analog signals into one node.

Industrial retrofit: connect RS485 Modbus devices and centralize monitoring over LoRaWAN.

Remote process sensing: monitor pressure/flow/level via 4–20 mA or 0–10 V in outdoor infrastructure.

Pulse metering: count water/gas/electric pulses with anomaly alerts.

Wireless Transmission (LoRaWAN®)
Protocol LoRaWAN®
Antenna Internal Antenna
Frequency EU868
Tx Power 16 dBm (868 MHz)
Sensitivity -137 dBm @300 bps
Work Mode OTAA/ABP Class A
Data Interfaces
Interface Type M12 A-Coded Male
IO (GPIO)
Ports 2 × GPIO
Logical Level Low: 0–0.8 V, High: 2.5–3.3 V
Maximum Current 20 mA
Work Mode Digital Input, Digital Output, Pulse Counter (Software Switchable)
Input Frequency Suggested value: ≤ 4000 Hz
Serial Port
Ports 1 × RS232 or RS485 (Software Switchable)
Baud Rate 1200–115200 bps
Protocol Transparent (RS232/RS485), Modbus RTU (RS485)
Analog Input
Ports 2 × analog input
Resolution 12 bit
Input Range 4–20 mA or 0–10 V (switchable)
SDI-12
Ports 1 × SDI-12
Protocol SDI-12 v1.4, transparent
Power Output
Ports 2 × 3.3 V, 2 × 5/9/12 V (switchable)
Power Time Before Data Collection Continuous (3.3 V), 0–10 minutes (5/9/12 V)
Others
Button 1 × internal power/reset button
USB 1 × internal Type-C for configuration and console
LED Indicator 1 × internal reboot/reset indicator
Software
Power On & Off Mobile app via NFC, PC software via USB Type-C, internal power button
Configuration Mobile app via NFC, PC software via USB Type-C, downlink
Advanced Feature Threshold alarm, change alarm, data storage (600 entries), data retrievability, data retransmission
Physical Characteristics
Power Supply 1) 3 × 9000 mAh replaceable ER26500 Li-SOCl2 batteries
2) DC 5–24V via M12 connector
Operating Temperature -30°C to +70°C
Relative Humidity 0 to 95% (non-condensing)
Ingress Protection IP68 (1 m underwater, 7 days)
Dimension 116 × 116 × 45.5 mm (connectors excluded)
Installation Wall or pole mounting
Approvals
Regulatory CE, FCC, ISED
Environmental RoHS