Milesight LoRaWAN® Soil Moisture, Temperature & Conductivity Sensor EM500‑SMTC‑868M – PN: MEC20

The Milesight EM500‑SMTC‑868M is a high-precision sensor designed for long-term outdoor deployment in demanding environments. It measures soil moisture, temperature, and electrical conductivity and transmits the data wirelessly using LoRaWAN® technology, covering distances of up to 10 km line of sight. It also supports Milesight D2D communication for low-latency local interactions.

The IP68-rated soil probe is built with epoxy resin and stainless steel, making it corrosion-resistant and suitable for direct burial. The IP67-rated transceiver is made of durable ABS+PC material. A 2-meter cable connects the probe to the main unit, providing installation flexibility. It runs on a replaceable 19,000 mAh battery with a lifespan of up to 10 years, depending on region and transmission interval.

Measurement Capabilities

• Soil Moisture: 0–100 %, accuracy ±2–3 %

• Soil Temperature: –40 °C to +80 °C, accuracy ±0.5 °C

• Electrical Conductivity: 0–20,000 μS/cm, resolution up to 10 μS/cm

Key Features

• High-precision multi-sensor for all soil types

• Rugged, corrosion-resistant probe (IP68)

• Long-range wireless (LoRaWAN®, up to 10 km)

• Configurable via NFC, USB-C or downlink

• Historical data storage with recovery

• 10-year battery life with 19,000 mAh capacity

• Compatible with Milesight IoT Cloud and most LoRaWAN® networks

Typical Applications

• Irrigation systems

• Smart greenhouse automation

• Precision agriculture

• Horticulture

• Golf course turf management