The MPKit enables rapid sampling of Volumetric Soil Water Percentage (VSW%). The MPKit does not need calibration and is not affected by temperature. The sensor needles are stainless steel and are embedded in a reinforced body and they can be fully inserted into the soil and the moisture content is displayed on the Android mobile App. The readings are also stored for later recall or to download to a computer.
The MP406 or MP306 Moisture Sensor uses a high frequency technology to measure the dielectric constant (Ka) of soil and other fine powdered materials or liquids. In these instances, the dielectric constant will be shown in millivolts (mV). The specific measurement of the dielectric constant of the soil and the conversion of the resultant millivolt output from the sensor probes is processed by the App, which enables direct measurement of the Volumetric Soil Water Percentage (VSW%).

The results displayed as VSW% come from a calibration relating Ka and mV output to the VSW%. The calibration curve used in the Android mobile App interface is the result of systematic calibration of many mineral soils. For common agricultural soils the results displayed can meet the needs of most applications. If a higher resolution is required, the customer may wish to take the mV output and recalibrate it directly to the VSW% of the soil being measured.

Linearisation tables can be added to the ICT MPKit Phone Application using the default conversion data for MPKit-306B/MPKit-406B for mineral soils that can be found in the manual

Mobile App Installation

The MPKit comes standard with an android mobile phone handset, pre-loaded with the phone app ICT MPKit. The ICT MPKit app can also be downloaded from Google Play if necessary, and will receive any updates through Google Play.

Storage Capacity

Each project will require a unique number of measurements per site and a unique number of sites over a period of time. The following example should indicate the incredible storage capability and efficiency of the ICT MPKit: If one csv file happens to contain 1,000 measurements it will take up approx. 100KB. Therefore 1GB of available data on the phone handset has the capacity to contain 10,000 CSV files that are sized 100KB. It is recommended that all csv files are exported by email and/or backed up to a computer.