Imagine you could see exactly how wet your field is, how hot the soil feels, and whether nutrients are balanced-all from a single device. The Milesight EM500-SMTC-868M LoRaWAN Soil Moisture, Temperature & EC Sensor does that. Farmers and growers often guess watering schedules, which can waste water or stress plants. This sensor gives you real-time data so you can water at the right moment and keep crops healthy.
Milesight EM500-SMTC-868M LoRaWAN Soil Moisture, Temperature & EC Sensor
Water management is the biggest challenge for anyone who grows plants. Too much water leads to root rot, while too little reduces yield. Temperature swings and soil salinity add hidden stress that most growers cannot see. The EM500-SMTC-868M solves these issues by sending moisture, temperature and electrical conductivity readings over LoRaWAN to your dashboard. Because the device works on a 10-year battery and can be buried or mounted on a pole, you get continuous data without daily maintenance. The low-power radio reaches long distances, so you can cover large farms with just a few gateways.
Key Features
- LoRaWAN EU868 frequency with 16 dBm transmit power.
- Moisture range 0 %-100 % with 2 % accuracy up to 50 %.
- Temperature range -40 C to 80 C, accuracy 0.5 C.
- Electrical conductivity up to 20 000 S/cm, 3 % accuracy below 10 000 S/cm.
- Battery: 1 19000 mAh Li-SOCl, up to 10 years at 10-minute intervals.
- IP67 transceiver and IP68 sensor housing for harsh outdoor conditions.
- 2 m cable, stainless-steel probe, epoxy resin sensor tip.
- Class A OTAA/ABP activation for secure network join.
- Sensitivity -137 dBm at 300 bps for reliable long-range links.
- Mounting options: buried sensor, pole, wall or DIN-rail transceiver.
Note: This product is compatible with UK, Europe, and other EU868-supported countries. Not compatible with USA/Canada (US915), Australia (AU915), or other LoRaWAN frequency regions.
Specifications
| Manufacturer |
Milesight IoT |
| Model |
EM500-SMTC-868M |
| Product Type |
LoRaWAN® Soil Moisture, Temperature & Electrical Conductivity Sensor |
| Wireless Transmission |
|
| Technology |
LoRaWAN®, Milesight D2D |
| Frequency |
EU868 MHz |
| Tx Power |
16 dBm (868 MHz) |
| Sensitivity |
-137 dBm @ 300 bps |
| Mode |
OTAA / ABP Class A |
| Measurement |
|
| Soil Moisture Range |
0% ~ 100% |
| Moisture Accuracy |
±2% (0~50%), ±3% (50~100%) |
| Moisture Resolution |
0.0001 |
| Temperature Range |
-40°C ~ 80°C |
| Temperature Accuracy |
±0.5°C |
| Temperature Resolution |
0.1°C |
| Electrical Conductivity Range |
0 ~ 20000 µs/cm |
| Conductivity Accuracy |
±3% (0~10000 µs/cm), ±5% (10000~20000 µs/cm) |
| Conductivity Resolution |
10 µs/cm (0~10000), 50 µs/cm (10000~20000) |
| Physical Characteristics |
|
| Cable Length |
2 m |
| Power Supply |
1 × 19000 mAh ER34615 Li-SOCl₂ battery |
| Battery Life |
Up to 10 years (10 min interval, EU868) |
| Operating Temperature |
-30°C ~ 70°C |
| Relative Humidity |
0% ~ 100% (non-condensing) |
| Ingress Protection |
Transceiver: IP67, Sensor: IP68
|
| Housing |
Transceiver: ABS + PC (Grey), Sensor: Epoxy Resin + Stainless Steel |
| Dimensions |
Transceiver: 105.4 × 71 × 69.5 mm
Sensor: 88 × 68 × 26 mm (probe 50 mm)
|
| Installation |
Buried installation (sensor), Pole/Wall/DIN rail (transceiver) |
| Approvals |
|
| Regulatory |
CE, FCC, ISED, ICASA, Telec |
| Environmental |
RoHS |
