Ml3 Thetaprobe Soil Moisture Sensor - China

Highly accurate yet easy to use

With the ML3 ThetaProbe Soil Moisture Sensor it’s easy to make reliable, accurate soil moisture measurements.

Simply insert the soil moisture probe into the soil, connect to your data logger or readout unit, provide 5-14 VDC at 18 mA, and within seconds you can be logging soil moisture.

The ML3 ThetaProbe is robust, buriable and maintenance free (environmentally protected to IP68).

It can be easily installed at depth into augered holes using the optional extension tubes.

The ML3’s excellent salinity response has been characterised at EC values up to 2000 mS.

m-1 - It also has a wide operating temperature range, allowing it to be used at temperatures as low as -40 degrees C (non-flexing cables).

The ML3 includes a thermistor sensor for the measurement of soil temperature of soil temperature with soil moisture (probe must be fully buried).

Specification

Measurement Volumetric water content and soil temperature

Accuracy ± 0.01 m3 - m-3 (1%) With soil-specific calibration

± 0.5°C (0 to 40°C for temp sensor)

± 0.75°C (-20 to +60°C for temp sensor)

Soil moisture measurement range Full accuracy over:

0 to 0.5 m3 - m-3

Full range : 0 to 1.0 m3 - m-3

Salinity range 50 to 500 mS.

m-1

Salinity errors < 0.035 m3 - m-3 from 0.05 to 0.4 m3 - m-3 - Can be calibrated up to 2000 mS.

m-1

Temperature range Full accuracy over: 0 to 40°C

Output 0 to 1.0 V differential

Corresponding to 0 to ~0.6 m3 - m-3

Resistance 5.8Ω to 28Ω for temp sensor

Power requirement 5-14 V, ~18 mA for 1s

Minimum 5.5 V with 100 m cable

Environmental IP68 (-40 to +70°C)

Sample volume ~60 x 30 mm diameter

Sample volume is weighted towards soil immediately surrounding the rods

Dimensions and weight Overall: 158 x 40 mm diameter Rods: 60 mm x 3.2 mm diameter (Rods are replaceable)

Weight: 0.1 kg (exc.

cable)

Sensor calibrations Individual sensors are interchangeable

Recalibration advised every 3 years (depending on use)

Soil calibrations Generalised Mineral and Organic soil calibrations are supplied

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