The Milesight EM500-SMTC is a rugged, precision lorawan® sensor designed to measure soil moisture, temperature, and electrical conductivity with high accuracy. Built for smart agriculture, greenhouse management, and horticulture, the EM500-SMTC offers real-time insights into soil conditions with ultra-low power consumption and a 10-year battery life. Equipped with an IP68-rated stainless steel soil probe and a durable IP67 transceiver, it ensures long-term, maintenance-free operation even in harsh outdoor environments.
| Parameter |
Specification |
| Moisture Range |
0% to 100% RH |
| Moisture Accuracy |
±2% (0–50%), ±3% (50–100%) |
| Moisture Resolution |
0.01% |
| Temperature Range |
-40°C to +80°C |
| Temperature Accuracy |
±0.5°C |
| Temperature Resolution |
0.1°C |
| Conductivity Range |
0 to 20,000 µS/cm |
| Conductivity Accuracy |
±3% (0–10,000 µS/cm), ±5% (10,000–20,000 µS/cm) |
| Conductivity Resolution |
10 µS/cm (up to 10,000); 50 µS/cm (above 10,000) |
| Wireless Protocol |
lorawan® (Class A, OTAA/ABP), Milesight D2D |
| Tx Power |
16 dBm (868 MHz), 20 dBm (915 MHz), 19 dBm (470 MHz) |
| Frequency Bands |
EU868 / US915 / CN470 / IN865 / RU864 / AS923 / KR920 / AU915 |
| Sensitivity |
-137 dBm @ 300bps |
| Power Supply |
1 × 19000 mAh ER34615 Li-SOCl? Battery (Replaceable) |
| Battery Life* |
Up to 10 years (10-min interval @ 25°C) |
| Data Storage |
1,000 entries with retransmission support |
| Configuration |
NFC Mobile App, USB-C, Downlink |
| Advanced Features |
Threshold Alarm, Data Retrievability, Temp Change Alerts |
| Ingress Protection |
Transceiver: IP67, Soil Sensor: IP68 |
| Housing Material |
Transceiver: ABS + PC (Grey), Sensor: Epoxy Resin + SS (White/Silver) |
| Dimensions |
Transceiver: 105.4 × 71 × 69.5 mm
Soil Sensor: 88 × 68 × 26 mm (Probe: 50 mm)
|
| Weight |
Transceiver: 328 g (with battery & bracket)
Soil Sensor: 138 g (with cable)
|
| Installation |
Transceiver: Wall, Pole, DIN Rail; Sensor: Buried |
| Cable Length |
2 meters |
| Certifications |
CE, FCC, ISED, ICASA, Telec, RoHS |
The EM500-SMTC delivers actionable insights for sustainable agriculture and environmental monitoring with unmatched accuracy and long-range performance. Available now from TerraQ Technologies across the MEA region.
