HELIA Technology Report
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EM500-SMTC is designed for measuring soil moisture, temperature and electrical conductivity in harsh environments and transmitting data using LoRaWAN® technology. With this low power consumption technology, EM500-SMTC can work up to 10 years with 19000 mAh battery. Combining with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can manage all sensor data remotely and visually. EM500-SMTC is widely used for outdoor applications like smart agriculture, smart horticulture, etc.
Features
- High precision for multiple kinds of soil
- Corrosion resistance and tough probe
- Ultra-wide-distance transmission up to line of sight of 10km
- IP66 waterproof enclosure for harsh environment applications
- Built-in 19000 mAh replaceable battery and work for 10 years without replacement
- Equipped with NFC for easy configuration
- Compliant with standard LoRaWAN® gateways and network servers
- Quick and easy management with Milesight IoT Cloud solution
Applications
- Irrigation Control
- Greenhouse control
- Smart agriculture
- Smart horticulture
- Golf course maintenance
Specifications
Wireless Transmission
- Technology
- LoRaWAN®
- Frequency
- CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923
- Tx Power
- 16dBm(868)/20dBm(915)/19dBm(470)
- Sensitivity
- -147dBm @300bps
- Mode
- OTAA/ABP Class A
Measurement
Moisture
- Range
- 0% ~ 100% RH
- Accuracy
- ±2%(0~50%), ±3%(50%~100%)
- Resolution
- 0.5%
Temperature
- Range
- -40°C ~ 80°C
- Accuracy
- ±0.5°C
- Resolution
- 0.1°C
Conductivity
- Range
- 0~20000 µs/cm
- Accuracy
- ±3%(0~10000 µs/cm), ±5%(10000~20000 µs/cm)
- Resolution
- 1 µs/cm
Operation
- Power On & Off
- NFC, power button (Internal)
- Configuration
- Mobile APP(via NFC) or PC software(via USB Type-C)
Physical Characteristics
- Cable Length
- 2 m
- Power Supply
- 19000 mAh Li-SOCL2 battery (ER34615)
- Battery Life*
- 4 years (10 min interval, SF12)
>10 years (10 min interval, SF7) - Operating Temperature
- -30°C to +70°C
- Relative Humidity
- 0% to 100% (non-condensing)
- Ingress Protection
- IP66 (Transceiver)/IP68(Soil Sensor)
- Dimension
- Transceiver: 105.4 × 71 × 69.5 mm (4.1 × 2.8 × 2.7 in)
Soil Sensor: 88 × 68 × 26 mm (3.5 × 2.7 × 1.0 in)
(Probe length: 50mm/1.97 in) - Installation
- Pole, wall or DIN Rail Mounting