
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.
incl. VAT177,31 €excl. VAT149,00 €plusShipping Costs
2 in stock
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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 |


