Features: 

• NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
• Ultra-low power consumption
• External 2× sensor probes, probe length: 2.5m
• Monitor Soil Moisture
• Monitor Soil Temperature
• Monitor Soil Conductivity
• Multiply Sampling and one uplink
• Support Bluetooth v5.1 remote configure and update firmware
• Uplink on periodically
• Downlink to change configure
• 8500mAh Battery for long term use
• Nano SIM card slot for NB-IoT SIM

Applications: 

Specification:

Common DC Characteristics: 

• Supply Voltage: built in 8500mAh Li-SOCI2 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

NB-IoT Spec:  

NB-IoT Module: BC660K-GL 

Support Bands: 

• B1 @H-FDD: 2100MHz
• B2 @H-FDD: 1900MHz
• B3 @H-FDD: 1800MHz
• B4 @H-FDD: 2100MHz
• B5 @H-FDD: 860MHz
• B8 @H-FDD: 900MHz
• B12 @H-FDD: 720MHz
• B13 @H-FDD: 740MHz
• B17 @H-FDD: 730MHz
• B18 @H-FDD: 870MHz
• B19 @H-FDD: 870MHz
• B20 @H-FDD: 790MHz
• B25 @H-FDD: 1900MHz
• B28 @H-FDD: 750MHz
• B66 @H-FDD: 2000MHz
• B70 @H-FDD: 2000MHz
• B85 @H-FDD: 700MHz

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:  

• STOP Mode: 10uA @ 3.3v
• Max transmit power: This email address is being protected from spambots. You need JavaScript enabled to view it.  

• DataSheet, Document Base
  
• User Manual -- Online Latest
• Shared Folder for all Dragino Products

Package Includes: 

• SE02-NB NB-IoT Soil Moisture & EC Sensor x 1 

• External antenna x 1 

Dimension and weight:

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

Part Number: SE02-NB-XX

XX: 

• GE: General version ( Exclude SIM card)

• 1T: with 1NCE* 10 years 500MB SIM card Pre-configure to ThingsEye server

1. Can I calibrate SE02-NB to different soil types?

SE02-NB 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.