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Sentek Soil Moisture Probes

EnviroSCAN Probe


The award winning EnviroSCAN probe is the flagship product of Sentek. It provides the user with great flexibility for precision monitoring of water and salinity at multiple depths in a soil profile.

The EnviroSCAN probe first made its mark in irrigated agriculture, resulting in water savings of 30-50% and substantial yield and quality benefits. Today it is widely used in all forms of agriculture (irrigated and dryland), environmental applications, research and education, as well as turf, parks and gardens.

The EnviroSCAN probe is the only commercially available product that allows for monitoring to great depths (up to 40 metres) using the same profiling probe.

Features include:
  • Multiple sensors with flexible depth placement (at 10 cm increments)
  • Monitoring from shallow depths (0 - 10 cm) to deep installations (> 40 metres)
  • Length of probe customised to suit the application (probe length adjustable in the field)
  • Up to 16 sensors on one probe (moisture or moisture/salinity)
  • In-built probe orientation and depth settings to enhance sensor repeatability
  • Full serviceability
  • Flexible connectivity for wide range of data retrieval options

EnviroSCAN Flat Cap Probe

Probe Sealing

The bottom of the access tube is typically sealed using a double-ringed expandable rubber bung, providing 2 sealing points and preventing underground moisture from entering the tube. A slurry cap is also available.

The top of the access tube is sealed with 2 different top cap designs, depending on application.

EnviroSCAN Screw Cap
  • Top cap protrudes above the soil surface
  • Easy to find and readily accessible
  • Tightly sealed with a rubber O-ring
  • Simply un-screws, giving easy access to the probe for servicing
EnviroSCAN Flat Cap
  • Allows for the probe to sit flush with the ground surface
  • Water-tight, 3 point sealing design
  • Provides ready access to the probe for servicing
  • Avoids potentially costly damage from machinery

EnviroSCAN Screw Cap Probe


EasyAG Probe

The EasyAG probe is a slim-line, easy to install probe. Available in two fixed lengths of 30 cm (12 inches) and 50 cm (20 inches), the probes can be configured either with Soil Moisture sensors to measure volumetric water content only, or with TriSCAN sensors, to measure both volumetric water content and volumetric ion content (VIC).

The EasyAG probe is ideally suited to shallow rooted crops or where it is only necessary to measure no deeper than 50 cm.

Features include:

  • multiple sensors at fixed depths
  • EasyAG 30 - sensors at 10cm, 20cm, 30cm
  • EasyAG 50 - sensors at 10cm, 20cm, 30cm, 40cm, 50cm
  • In-built probe orientation and depth settings to increase sensor repeatability
  • Slim-line probe

Access Tubes

Both types of probes are installed into customised access tubes to allow for:

  • improved sensor accuracy through precise wall thickness and diameter of access tube
  • protection of sensors by avoiding direct soil contact
  • specific sealing to ensure long-term operation
  • full in-field serviceability without impacting on data integrity
  • minimum soil disturbance during installation and hence measurement of an undisturbed soil profile