Soil Moisture Sensor PICO64 Moisture Measurement in Soil, Sand and Concrete
  • Highest accuracy by the use of the latest TDR electronics
  • Measure direct 0...100% vol. soil water content
  • NEW: Measures 3 important parameters:
    • water content
    • temperature
    • electrical conductivity and salinity
  • NEW: with SDI-12 interface
  • Bulk soil electrical conductivity up to 12dS/m
  • small measurement volume > 250ml
  • Rods exchangeable

TRIME-PICO32 sensor with internal TDR-electronics

IMKO‘s intelligent rod probes are highly sophisticated high-tech devices and extremely robust. A unique feature is their integrated TDR electronics, thus achieving the greatest accuracy and best networking capability e.g. digital network cable lengths of up to 3 km are possible for the IMP-Bus version. In contrast to other methods TRIME®-PICO is less effected by disturbing variables such as temperature or electrical conductivity. An integrated temperature sensor gives valuable additional information.

Soil Moisture Sensor TRIME-PICO64 build in soil Probe installation

Measurement volume soil moisture sensor PICO32 Measurement volume PICO32

For in situ monitoring of volumetric moisture in soils and other porous materials. The large measuring volume is particularly suitable for applications in heterogeneous and skeletal media. Burying capability for both horizontal and vertical orientation. Due to its mechanical robustness TRIME®-PICO32 is recommended for mobile use together with Bluetoothmodule PICO-BT.

  • TRIME-PICO32 is the sensor for maximum accuracy in materials with bulk electrical conductivity of up to 12dS/m.
  • Ideal for irrigation control systems and soil moisture monitoring
  • Perfect for sandy and loamy soils

Wireless data management with a Palm-PC and Windows-Mobile

For users wanting to exploit modern PC technology to the full, we can supply the optimum means for measurement-data management on location, right at the point of measurement, using a Palm-PC with Windows-Mobile. All what you need is IMKO’s robust PDA or use any commercially available PDA with Bluetooth® and Microsoft® Windows Mobile®. And PICO-BT, the Bluetooth® module for the PICO sensors, is included with the PICO- TALK software for Windows Mobile®.

...more information about the PICO-BT module

Wireless soil moisture measurement with PICO-BT Wireless soil moisture measurement with PICO-BT


Power supply:


Power consumption:

100mA @ 12V/DC during 2..3sec. of measuring

Moisture measuring range:

0..100% volumetric water content

Accuracy (in % volumetric water content):

conductivity range:




Moisture range 0..40%:



with material
specific calibration

Moisture range 40..70%:



Repeating accuracy:



Temperature caused drift of electronics
(full range):


Soil temperature measuring range:


Soil temperature measuring accuracy:

±1,5°C absolute, ±0,5°C relative

Measurement volume:

0,25L ≙ 110x50mm diameter

Operating Temperature:

-15°C...50°C (extended temperature range on request)


Calibration for a wide range of standard soil types (in accordance with Topp (equation))

standard calibration for most soils
customizable material specific calibration
storage of up to 15 user defined calibration curves
calibration of dialectric permittivity is possible

Probe body:

waterproof sealed PVC (IP68)


155 x Ø32mm

Rod lenght:

standard: 110mm

Rod diameter:



Analogue output: 2x 0..1V, 0(4)..20mA*

Interfaces Application Cable length Connector
RS485 & analogue mobile for HD2 & PICO-BT 1,5m 7-pin female
IMP-BUS for globeLog datalogger 5m (special length on request) 4-pin female
RS485, IMP-BUS & analogue for analogue datalogger
Optional: E-BOX (cabel extension box)
Optional available for cable extension and current output: C-BOX (0,1V zu 0(4)..20mA converter box)
5m (special length on request) 10-pin end splices
SDI-12, IMP-BUS & analogue for SDI-12 datalogger 5m (special length on request) 9-pin end splices