Qt Eq15 Soil Water Potential Meter - China

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

Company Contact:

• Posted By: Channel Tech scientific Instruments

• Phone: 15611257114

• Address: Suite 6B13 Huajie Plaza, 13 Dazhongsi, Haidian District, Beijing , BeiJing , China

• Email:

• Website: https://www.channeleco.com

• Business Description: For the purpose of introduction and promotion of global advanced instrumentation and technology in the fields of terrestrial ecology, aquatic ecology and life science