Dragino SE01-LS -- LoRaWAN Soil Moisture & EC Sensor EU868

The Dragino SE01-LS is a LoRaWAN Soil Moisture & EC Sensor for IoT of Agriculture. It is designed to measure the soil moisture of saline-alkali soil and loamy soil. The soil sensor uses FDR method to calculate the soil moisture with the compensation from soil temperature and conductivity. It also has been calibrated in factory for Mineral soil type.

It detects Soil Moisture, Soil Temperature and Soil Conductivity, and uploads the value via wireless to LoRaWAN IoT Server.

The LoRa wireless technology used in SE01-LS allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.

SE01-LS supports BLE configure and wireless OTA update which make user easy to use.

SE01-LS is powered by solar panel + li-on battery it is designed for long term use up to 5 years.

Each SE01-LS is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.

Specification:

Common DC Characteristics:

    Supply Voltage: Built-in Battery , 2.5v ~ 3.6v
    Operating Temperature: -40 ~ 85°C

Soil Moisture:

    Range: 0-100.00 V/V %
    Resolution: 0.01 V/V %
    Accuracy: ±3% (0-53%)V/V %, ±5% (>53%) V/V %
    Measure Method: FDR , with temperature &EC compensate

Soil Temperature:

    Range: -40.00℃～85.00℃
    Resolution: 0.01℃
    Accuracy: -10℃～50℃:<0.3℃ ,All other: <0.6℃
    Measure Method: RTD, and calibrate

Soil Conductivity:

    Range: 0-20000 uS/cm(25℃)(0-20.0EC)
    Resolution: 1 uS/cm
    Accuracy: 2%FS
    Measure Method: Conductivity , with temperature compensate

LoRa Spec:

    Frequency Range,  Band 1 (HF): 862 ~ 1020 Mhz
    Max +22 dBm constant RF output vs.
    RX sensitivity: down to -139 dBm.
    Excellent blocking immunity

Power Consumption:

    Sleep Mode: 5uA @ 3.3v
    LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm