PlantCare Mini-Logger

The PlantCare Mini-Logger is a maintenance-free sensor which records soil moisture and soil temperature. A USB stick is used to easily program the mini-logger and readout the data. The PlantCare DataViewer Software allows a quick and easy display and analysis of the measured data. Fields of application are scientific research, agriculture and garden and landscaping construction.


Agricultural research / forestry / hydrology

Irrigation monitoring in:

Garden and landscaping construction




Tree nurseries



Measurement of soil moisture levels and soil temperature at freely selectable intervals.

Speedily reaction to changes in moisture levels.

Reliable results even at minimum depths (from 5 cm).

Value measured is unaffected by salt or fertilizer content.

Precise recording of measurements through built-in quartz clock.

A USB-interface allows programming the logger as well as readout the measured data.


Weatherproof IP67 housing

 Weatherproof IP67 housing



Temporary or permanent installation

Can be used in all soil types

Setting options:

Device name

Measuring cycle time: 10 - 360 min

Measurement in: relative % or hPa (for hPa 6 standard soils to choose from)

Time of first measurement

Date and time

Date erase

Parameter reset

Logging capacity for approx. 12.000 data sets

Data export with export cable and USB Stick

Programming with configuration file on a USB stick

Data analysis with PlantCare DataViewer Software (inclusive)

Power supply: 2 AA 1.5 V mono-cells

Battery life span approx. 1 year depending on measuring cycle

Weatherproof IP67 sealing with one button operation

Frost resistant

Dimensions: 4 x 4 x 23 cm (shortest version)

Weight approx. 130 gram

Operating temperature: -20° C to +50° C



PlantCare Mini-Logger ST / Inserting depth max. 18 cm

PlantCare Mini-Logger M / Inserting depth max. 35 cm

PlantCare Mini-Logger XL / Inserting depth max. 60 cm

PlantCare Mini-Logger XXL / Inserting depth max. 100 cm

PlantCare Mini-Logger XL Cable / Inserting depth max. 60 cm

PlantCare Mini-Logger XXL Cable / Inserting depth max. 250 cm




The Plant Care Mini-Logger Configurator software allows for easy adjustment of the factory settings on a Windows PC. The The Configurator automatically generates a file that you save on a USB stick and then read in into the Mini-Logger.


PlantCare Mini-Logger Configurator Software


Setting options:

Device name

Measurement start at a certain time

Measurement cycle from 10 minutes to 6 hours

Moisture output in relative % or hPa suction pressure

Import current date and time from your computer clock

Delete memory function

Languages: English/German

Free of charge

No installation required




Moisture display:

- In relative %-units or

- hPa suction pressure for 6 standard soils

Measuring range soil moisture (at a soil temperature between 2° C to +37° C*):

- Relative %-units: 0 - 100%

- hPa: 0 – 400 hPa high sensitivity / > 400 - 800 hPa lower sensitivity

Measuring range soil temperature: -20°C to +50° C

Measuring accuracy:

- Soil moisture: +/- 3%

- Soil temperature: +/- 0.3° C

Reading accuracy:

- Soil moisture in relative %: 1%

- Soil moisture in hPa: 1hPa

- Soil temperature: 0.1 °C

* Sensors for soil moisture measurements at soil temperature range between 2° C to +50° C on request



PlantCare’s worldwide patented sensor technology is based on the microthermic measurement of soil moisture. A specially developed felt material in moisture balance with the soil acts as the interface between the surrounding soil and the sensor. To measure the moisture level, the sensor is briefly heated and the cooling-down time, which varies depending on soil moisture, is determined. The sensor's cooling-down time thus provides a reliable statement of the soil's moisture content.



PlantCare Mini-Logger incl. batteries

PlantCare DataViewer software for the display and analysis of the measured data

PlantCare Mini-Logger Configurator Software



Data upload / download cable incl. 2 USB Sticks (1GB) for Mini-Logger configuration respectively data download

Replacement tip with felt for Mini-Logger sensor

PlantCare DataViewer
PlantCare DataViewer
Syngenta Crop Science
Syngenta Crop Science