SE02-LB -- LoRaWAN Soil Moisture & EC Sensor

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SE02-LB -- LoRaWAN Soil Moisture & EC Sensor

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The Dragino SE02-LB is a LoRaWAN Soil Moisture & EC Sensor for IoT of Agriculture which has 2 sensor probes. 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 SE02-LB 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.

SE02-LB supports BLE configure and wireless OTA update which make user easy to use.

SE02-LB is powered by 8500mAh Li-SOCI2 battery it is designed for long term use up to 5 years.

Each SE02-LB 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.

Features:

LoRaWAN 1.0.3 Class A
Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
Ultra-low power consumption
External 2× sensor probes, probe length: 2.5m
Monitor Soil Moisture
Monitor Soil Temperature
Monitor Soil Conductivity
Support Bluetooth v5.1 and LoRaWAN remote configure
Support wireless OTA update firmware
AT Commands to change parameters
Downlink to change configure
IP66 Waterproof Enclosure
8500mAh Li/SOCl2 Battery

Applications:

应用场景

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

Battery:

Li/SOCI2 un-chargeable battery
Capacity: 8500mAh
Self-Discharge: <1% / Year @ 25°C
Max continuously current: 130mA
Max boost current: 2A, 1 second

Power Consumption:

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

Package Includes:

SE02-LB LoRaWAN Soil Moisture & EC Sensor

Dimension and weight:

Device Size: 195 * 125 * 55 mm
Device Weight: 420 g

Part Number: SE02-LB-XX

XX: the default frequency band

EU433: Default frequency band EU433
CN470: Default frequency band CN470
EU868: Default frequency band EU868
IN865: Default frequency band IN865
KR920: Default frequency band KR920
AS923: Default frequency band AS923
AU915: Default frequency band AU915
US915: Default frequency band US915

Can I calibrate SE02-LB to different soil types?

SE02-LB is calibrated for saline-alkali soil and loamy soil. If users want to use it for other soil, they can calibrate the value in the IoT platform base on the value measured by saline-alkali soil and loamy soil. The formula can be found at this link.

Last modified on 10 July 2024