.

QT-EQ15 Soil water potential meter

Product description: Equilibrium tensiometer is a new revolutionary soil water potential meter which has patent protection. Soil water potential is measured as potential energy per unit quantity of water under isothermal conditions, its unit is bar (1 bar = 100kPa). In the soil, water potential is a major factor in determining the direction and speed of water flow, which is the only index of the effectiveness of soil moisture to plants. The water potential of different soils can be compared with each other directly. Accurate determination of soil water potential has very important significance for the research on the flow of soil water, drought resistance of plants, automatic control of water-saving irrigation, soil moisture monitoring, etc.

QT-EQ15 Soil water potential meter

Principle

EQ15 equilibrium tensiometer consists of two parts: equilibrium sensor and moisture content sensor. The equilibrium sensor is made of a special material which owns two characteristics: stable relationship between water content and water potential, high water permeability. Good permeability can ensure water potential changes simultaneously with soil water content. Moisture content sensor measure the water content of equilibrium sensor all the time. Because the relationship between water content and water potential is known, soil water potential can be calculated based on soil water content. Moisture content sensor is fixed in the equilibrium sensor, thus the changes of ambient environment (Soil density, gravels, root systems, etc.) around the probe have no effect on the measurement results.

Comparison with traditional soil water potential meter

The current soil water potential meters on the market and their measuring principles have several shortcomings in some aspects, such as measurement accuracy, measurement range and stability in measurement. Apparently those soil water potential meters cannot completely meet users’ requirements. The traditional tensiometer usually has a small measurement range (-0.8~0bar), and it can be used only in moist soil and damaged easily; Psychrometer can be heavily affected by the temperature change and its measurement accuracy is low and not suitable for outdoor use. Gypsum blocks has low measurement precision, low stability, and can get significantly affected by soil pH

Equilibrium tensionmeter has irreplaceable advantages

  • Wide measurement range, Including the full spectrum of water potential for plant survival
  • High precision, measurement error is less than 5k Pa
  • Easy to use, no need of any maintenance and repair, completely suitable for long-term outdoor use
  • Measurement accuracy is not affected by soil properties (except alkaline soils)
  • Multiple probe connections to the data logger

Feature

  • GPS coordination can be recorded
  • Record data Automatically or manually
  • Wireless data transmission via Wi-Fi
  • Recognize sensors by two-dimensional code
  • Automatically recognize connected sensors
  • Terminal memory card is up to 32G
  • Display real-time data and curve of recorded data
  • Export data to Excel for analysis

Technical parameters

EQ15

Measurement range

0~ -1500kP(0~-15bar)

Measurement accuracy

±10kPa(0~-100kPa);

±10% Reading(-100~-1500kPa)

Applicable temperature range

Operating temperature: 0~40℃;

Storage temperature: -30~70℃;

Can stay in the permafrost

Applicable soil types

Non-saline soil (EC of soil solution < 1ms/cm)

Power

5~15V DC, maximum consumption: 23 mA x 5s

Output

100~800 mV

Size

17cm×4cm×2cm; 7.5 cm into the soil

Weight

350g (without electrode)

Cable

standard 5m, can be extended to 100 meters

Material

Stainless steel housing, sealed

Handheld terminal

CPU

Quad-Core:1.3GHz

Operating system

Android 4.2

ROM

4G

RAM

1G

Extended memory

up to 32G

Screen size

5.0 In.

Screen resolution

960*540

Operation mode

Touch screen

Screen color support

16 million

Origin: China



Send product request

To: 125370
Your E-mail:
Message text:


Send to other suppliers

Other supplier products

QT-SM101 Soil moisture temperature meter
QT-SM101 Soil moisture temperature meter Product description: QT-SM101 is based on TDR (Time domain Reflectometry) technology, it can be used to rapidly measure the moisture of various typ...
QT-LS02 Leaf Analysis System
QT-LS02 Leaf Analysis System Product description and Features:QT-LS02 Leaf Analysis System is a leading software for leaf analysis. This software is smart, accurate, multipurpo...
QT200 Series Automatic Weather Station
QT200 Series Automatic Weather Station Product description: QT200 series automatic weather station can acquire wind direction, wind speed, rainfall, air temperature, relative humidity, s...
QT-WT01 underwater button temperature data logger
QT-WT01 underwater button temperature data logger QT-WT01 underwater button temperature data logger is an accurate, small-sized and easy-to-use device. It can be placed underwater as deep as 30 met...
QT-AT 502 Portable Chlorophyll Meter
QT-AT 502 Portable Chlorophyll Meter Product description:QT-AT 502 Chlorophyll Meter can measure chlorophyll content of plants. Chlorophyll content is an important index of plant growt...
All supplier products

Same products

Cordyceps Cs-4 Powder
Cordyceps Cs-4 Powder Seller: Hangzhou Molai Biotech Co.,Ltd Cordyceps Cs-4 Powder Product Name: Cordyceps Cs-4 Powder Botanical Name: Cordyceps Sin...
High Quality Shiitake Mushroom Extract
High Quality Shiitake Mushroom Extract Seller: Hangzhou Molai Biotech Co.,Ltd High Quality Shiitake Mushroom Extract Product Name: Medicinal Shiitake Mushroom Extract Botanica...
Coriolus Versicolor Extract health supplement
Coriolus Versicolor Extract health supplement Seller: Hangzhou Molai Biotech Co.,Ltd Coriolus Versicolor Extract health supplement Product Name: Coriolus Versicolor Extract Exporter ...
High Quality Hericium Erinaceus Extract
High Quality Hericium Erinaceus Extract Seller: Hangzhou Molai Biotech Co.,Ltd Hericium Erinaceus Extract tablet Product Name: Hericium Erinaceus Extract Botanical Name:&n...
High Purity Cordyceps Extract China
High Purity Cordyceps Extract China Seller: Hangzhou Molai Biotech Co.,Ltd High Purity Cordyceps Extract China Product Name: High Quality Cordyceps Extract Exporter China B...