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SE02-LB -- LoRaWAN Soil Moisture & EC Sensor

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 MoistureSoil 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
  1. 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
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Shenzhen  Dragino technology development co.LTD
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