Milesight LoRaWAN Soil Moisture, Temperature and Conductivity Sensor EM500-SMTC-868M PN:MEC20

The EM500-SMTC is a robust, research-grade LoRaWAN® soil sensor designed to monitor moisture, temperature, and electrical conductivity (EC) with high accuracy in real time. Ideal for smart agriculture, greenhouse management, horticulture, and automated irrigation, it delivers critical insights into soil conditions to help optimize water usage and crop yield.

Built to thrive in the harshest environments, the EM500-SMTC features a IP67-rated transceiver and an IP68 corrosion-resistant soil probe, ensuring reliable performance even in corrosive or waterlogged soils. The device can be configured via NFC or USB-C, and data can be remotely managed through Milesight IoT Cloud or third-party LoRaWAN® platforms.

Powered by a replaceable 19000 mAh battery, it supports ultra-low power operation for up to 10 years of maintenance-free service. Integrated data storage and retransmission functions guarantee data integrity in case of signal interruptions.

Whether it’s for automated irrigation, golf course maintenance, or precision farming, the EM500-SMTC offers long-range wireless transmission (up to 15 km), seamless system integration, and real-time soil intelligence.

<table>
<thead>
<tr>
<th>Category</th>
<th>Specification</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Wireless</strong></td>
<td>LoRaWAN®, Milesight D2D, Internal Antenna</td>
</tr>
<tr>
<td>Frequency Bands</td>
<td>CN470 / EU868 / US915 / AU915 / KR920 / AS923 & more</td>
</tr>
<tr>
<td>Transmission Range</td>
<td>Up to 2 km (urban), 15 km (rural)</td>
</tr>
<tr>
<td>Tx Power</td>
<td>16 dBm (868 MHz), 20 dBm (915 MHz)</td>
</tr>
<tr>
<td>Sensitivity</td>
<td>-137 dBm @ 300 bps</td>
</tr>
<tr>
<td><strong>Soil Moisture</strong></td>
<td>0–100%, ±2% (0–50%), ±3% (50–100%), 0.01% resolution</td>
</tr>
<tr>
<td><strong>Temperature</strong></td>
<td>-40 °C to +80 °C, ±0.5 °C, 0.1 °C resolution</td>
</tr>
<tr>
<td><strong>Conductivity</strong></td>
<td>0–20,000 µS/cm, ±3%/±5%, 10–50 µS/cm resolution</td>
</tr>
<tr>
<td><strong>Enclosure Rating</strong></td>
<td>Transceiver: IP67, Sensor Probe: IP68</td>
</tr>
<tr>
<td><strong>Power Supply</strong></td>
<td>1 × 19000 mAh ER34615 Li-SOCl₂ Battery</td>
</tr>
<tr>
<td>Battery Life</td>
<td>Up to 10 years (typical at 25 °C, 10 min interval)</td>
</tr>
<tr>
<td><strong>Configuration</strong></td>
<td>NFC via Mobile App, USB-C via PC, Downlink</td>
</tr>
<tr>
<td>Data Features</td>
<td>Storage (1000 entries), Retransmission, Threshold Alarms</td>
</tr>
<tr>
<td><strong>Operating Temperature</strong></td>
<td>-30 °C to +70 °C</td>
</tr>
<tr>
<td>Humidity</td>
<td>0–100% RH (non-condensing)</td>
</tr>
<tr>
<td><strong>Dimensions</strong></td>
<td>Transceiver: 105.4 × 71 × 69.5 mm, Sensor: 88 × 68 × 26 mm</td>
</tr>
<tr>
<td>Mounting</td>
<td>Pole / Wall / DIN rail (transceiver), Buried (sensor)</td>
</tr>
<tr>
<td>Certifications</td>
<td>CE, FCC, ICASA, RoHS, Telec</td>
</tr>
</tbody>
</table>