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TH301 Soi Moisture Measurement System

Summary

  The TH301 soil water content monitoring system is mainly composed of a data logger and TH series of soil moisture sensors. The measurement data of multiple monitoring samples can be viewed and downloaded online in real time on a freely provided data management platform.

  Data logger: 

  The data logger is low-cost, low-power, multi-functional, which integrates solar charge controller, polymer lithium battery, GPRS, GPS and true color touch screen. The data can be downloaded from a mobile phone via bluetooth or remotely wirelessly transmitted, and has an Android APP data viewing and management tool. The edge of the case is sealed with an O-ring, which has good water resistance and is convenient for monitoring in the field. Moreover, it can connect various types of sensors and supports SDI-12 and RS-485 interfaces.

 


  TH series of soil moisture sensors:

  TH series of soil moisture sensors have three types. TH-10 is to measure soil volumetric water content. TH-20 is to measure soil volumetric water content and temperature. TH-30 is to measure soil volumetric water content, temperature, and electrical conductivity.  

          TH-10                         TH-20                        TH-30

         

TH series of soil moisture sensors can directly measure the volumetric moisture content of soil by measuring the dielectric constant of the soil, which is a method of measuring soil moisture in accordance with current international standards. It is suitable for soil moisture monitoring, scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, grassland pastures, soil rapid testing, plant cultivation, sewage treatment, precision agriculture and other occasions.

The sensor has the following characteristics: 

The electrode adopts specially processed synthetic material, which can withstand strong external impact and is not easy to damage.

    Excellent sealing, better than similar imported products, can be buried in the soil or directly into the water for long-term dynamic monitoring.

    High precision, fast response, good interchangeability, probe insertion design ensures accurate measurement and reliable performance.

    Perfect protection circuit and multiple signal output interfaces are optional.

    IP68 waterproof interface.

 

     


Specification

Data logger 

Sampling interval: 1 minute minimum

Storage: 32M memory, with 8G SD card, supporting 32 variables

Digital channel: SDI12 / RS485 / RS232

Analog channel: 12 single-ended

Measurement: Automatically monitor the battery, solar panel, real-time clock battery voltage, automatically calculate the real-time value, average, maximum, minimum, cumulative

Transmission: data can be transmitted by mobile phone bluetooth or remote wireless

GPS: built-in

Power supply: Built-in 20Ah lithium battery, can be connected to solar panel or battery

Size: 250 × 253 × 100 (mm)


Soil sensor 

Types 

TH-10

TH-20

TH-30

 Measurement 

 VWC

 VWC

 Temperature 

 VWC

 Temperature 

 Electrical conductivity 

 Range 

 0~100%

 0~100%  

 -40~80  

 0-100%  

 -40~80

 0~23 ds/m

 Resolution 

 0.1%~0.25%

 0.08%

 0.1

 0.08%   

 0.1

0.01dS/m(<7dS/m), 0.05dS/m(7-23dS/m) 

 Precision 

 ±1~3%

 ±1~3%

 ±0.5

 ±1~3%

 ±0.5

 ±5%(0-7ds/m)

 Output

 Voltage  

 SDI-12

 SDI-12

 Supply voltage 

 2.5-3.6 VDC  

 3.6-12 VDC

 3.6-12 VDC

 Response time 

 10ms  

 150ms

 150ms

 Enclosure size 

 20*12*93mm 

35*12*110mm    

35*12*110mm              

 Enclosre rating 

 IP68  

 Operating   

 environment 

 -40~85

 Probe material 

 Anti-corrosion special electrode

 Sealing material 

 Black flame retardant epoxy resin

 Cable length 

 5 meters by default, other lengths can be customized



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