Product Overview
Sentek specialises in soil data probes, telemetry and data transfer, irrigation decision aiding software and complete solutions.
We make smart irrigation and sensor technologies to help you measure and understand soil moisture, temperature and salinity data time series. Multiple sensors on a probe ensure profile dynamics and measurements.
Our innovations include the award-winning EnviroSCAN™, Drill & Drop™ and IrriMAX™ software ensuring we set the industry standard for design, precision and durability in agriculture, research and environmental management. Our products include:

Soil Data Probes
Drill & Drop™ Bluetooth®
Our Drill & Drop™ Bluetooth® probe is a simple, powerful soil moisture monitoring tool.
The probe is designed for ease of use. Data can be collected on your mobile phone using our app without the need for complex, and expensive cellular, and satellite modem telemetry.
Drill & Drop™ Bluetooth® can be used for vegetable crops, flower farming, berries, crop research and consulting as well as tree pots and nurseries.
Drill & Drop™
Our Drill & Drop™ probe accurately measures soil moisture, temperature and salinity.
The probe is fully encapsulated, quick and easy to install and can be completely buried to reduce the risk of machinery damage.
Our probes come in four lengths:
• 30 cm (12 inch)
• 60 cm (24 inch)
• 90 cm (36 inch)
• 120 cm (48 inch)
Sensors are fixed to the probe in 10 centimetre (4 inch) increments. You can purchase a probe at any length with your choice of either:
1. soil moisture and temperature sensors
2. soil moisture and temperature plus salinity sensors
Our Drill & Drop™ SDI-12 is also available as a single point sensor, at 10 cm (4 inches) in length
EnviroSCAN™
Our award-winning EnviroSCAN™ probe is the only commercially available product that can monitor soil moisture, salinity, temperature and humidity at depths up to 40 metres.
The probe delivers a deep understanding of your soil offering flexibility and precision monitoring at multiple depths.
EnviroSCAN™ can be used for vineyards, tree crops, research projects, irrigated and dryland crops as well as environmental and landscape management.
Diviner 2000™
Our Diviner 2000™ is a portable and robust device that measures water at 10 centimetre intervals, for up to 16 depth levels, through the soil profile. Our patented ‘swipe and go’ technology provides and accurate and instant soil snapshot and can take moisture readings in a matter of seconds.
The probe is designed to take soil profile measurements every few seconds wherever an access tube has been installed. It can monitor up to 99 sites at any one time and comes with a hand-held data logging display unit so you can take field readings instantly, accurately and affordably and easily transfer data.
SoluSAMPLER™
Our SoluSAMPLER™ assists to monitor salt and nutrient movement in the root zone.
The sampler draws moisture from the surrounding soil and stores it in an inert ceramic cup for collection and analysis. The ceramic cup is available in two different types: light flow which is suitable for most applications and high flow which can be used in light texture and moist soils and for rapid sampling.
SoluSAMPLER™ can be used for vineyards, irrigated and dryland cropping, tree crops, research projects as well as environmental and landscape management.

Telemetry & Data Transfer
Sentek BILBY®
The BILBY® is a telemetry unit that works underground, connecting to a Sentek Drill & Drop™ probe via the SDI-12 protocol. It then transmits information to a Gateway via underground wireless technology, then uploads to the cloud via a Wi-Fi, Ethernet or Cellular connection.
The multi-functionality and reliability of the BILBY® when paired with the Sentek Drill & Drop™ is an ideal combination for many users looking for a wholly underground solution.
Sentek Wi-Fi Link™
Sentek’s Wi-Fi Link™ is a Data Transmission Unit that pairs with a Sentek Drill & Drop™ Bluetooth® Probe. The DTU can either be placed directly on top of the probe or on a pole within a 5 m distance in the case of canopies.
The Wi-Fi Link™ downloads from one paired probe and uploads to IrriMAX Live™ using a compatible Wi-Fi Access Point. Use Drill & Drop™ Connect Application (Android and iOS) V1.2.1 or higher to configure Wi-Fi Access Point and pair Bluetooth wireless technology probe.
Nexus Blue
The Sentek Nexus Blue is an efficient, low-cost Data Transmission Unit (DTU) which connects with multiple Drill & Drop™ Bluetooth® probes to upload to Sentek’s IrriMAX™ Live cloud platform using the latest low-power cellular technology.
The Nexus Blue can be installed quickly with data available immediately.
IoT DTU
The Sentek IoT Data Transmission Unit (DTU) combines the Sentek SM200 Modem, solar panel, and a rechargeable battery.
Features include:
- Built-in solar panel with a rechargeable lithium-ion battery, which provides power to run the system and charges the battery.
- Provides a 10 m operating distance from a smartphone for initial setup using a Bluetooth® connection and our app.
- Supports the Drill & Drop™ brickless Stage 2 probe with 14-pin connector.
PLUS Compact
A low profile design with a long-life battery.
Features include:
- a simple complete monitoring solution
- Cellular* or satellite modem for data transmission
- tested and proven design built to perform reliably in tough conditions
- optional high gain antenna for improved coverage
- built in long-life battery – no solar panel means less obstructions
*Requires SIM card
PLUS Standard
Instantly access all the data you need without going back into the field.
Features include:
- 12-volt battery with solar panel for low maintenance self-charging
- located in close proximity to the probe via five meters of cable
- data transmission via cellular or satellite modem with antenna
- front panel connectivity for local downloading – for data access if telecommunication services are unavailable
Sentek SOLO
Convenient and portable storage for your soil moisture, temperature and salinity data.
Features include:
- manual data collection via transportable SoloPORTER USB device
- optional direct download via cable connection to laptop
- same interface as Sentek PLUS allowing for simple upgrade to wireless communications
MULTI
Monitor irrigation systems, climate and soil conditions for any site.
Features include:
- ability to create a customised system using multiple inputs
- connect up to two cabled soil moisture probes
- add-on connections to temperature, rain and irrigation monitoring systems
- data transmission via cellular or satellite modem

Irrigation Decision Aiding Software
IrriMAX™ Live
IrriMAX™ Live is a subscription-based online portal that displays integrated soil moisture, salinity, and temperature data. This intuitive platform is based on Sentek’s acclaimed IrriMAX™ Desktop version and allows real-time monitoring of water use for precision irrigation management.
Devices: All smart devices with internet
Platform: Works on iOS and Android and accessed through web browser
IrriMAX™ Desktop
Our IrriMAX™ software system can be downloaded to your computer so you can instantly see changes in soil moisture, salinity and temperature. IrriMAX™ enables you to make better irrigation management decisions using easy to understand graphs and reports.
Devices: Desktop and laptop computers
Platform: Version 10.1 of IrriMAX™ is compatible with Windows 8 and 10
Satellite Spectral Imagery – Normalised Difference Vegetation Index (NDVI)
Satellite Spectral Imagery – Normalised Difference Vegetation Index (NDVI) Sentek Technologies now offers an investigative tool exclusive to IrriMAX™ Live. Used by irrigators, IrriMAX Live presents a Google Map View of the selected property where water gauges and soil status is available. NDVI images are satellite images taken throughout cropping season. This is an optional […]
Weather Forecasting Service MeteoBlue
Weather Forecasting Service MeteoBlue Information Sheet Sentek has partnered with MeteoBlue to offer a 7-day weather forecast database for any location on Earth. Sophisticated models are employed to predict temperature, rainfall, ET, humidity, pressure, wind speed and wind-direction at hourly intervals for a latitude/longitude of your choice Forecast data is retained to provide a historical […]
IrriMAX Live- Root Analysis
Learn more about your crops root activity by switching on Root Detection in IrriMAX™ Live!
IrriMAX Live: Weather Forecasting by MeteoBlue
Sentek has partnered with meteoblue to offer a 7-day weather forecast database for any location on Earth. Forecast data is retained to provide a historical record of conditions.
IrriMAX Live- Daily water use for your crops
Learn more about the Dynamics of Daily Evapotranspiration.
IrriMAX Live- Irrigation Analysis
Learn more about IrriMAX™ and its new feature: Root Detection and Analysis!
Tested And Validated By A Global Scientific Community
In addition to this, Sentek technologies have been rigorously tested, and validated, by the global scientific community for decades making them a proven research solution. There are many papers available assessing the accuracy of our probes and the quality of our calibration algorithms.
We have also achieved the International Organization for Standardization (ISO) 9001 certification that proves our quality management system is world-class, our products comply with consumer and regulatory standards and Sentek is a brand you can trust.
Open Integration Platform
Sentek soil moisture probes are used globally in agriculture, horticulture, viticulture, research and mining as well as wastewater, landscape and environmental management. Our commitment to delivering valuable, market driven outcomes to customers is the result of strong, collaborative relationships with our solution partners.
In the early 2000s, we adopted an open integration platform and began working with other technology companies to provide soil moisture monitoring solutions for a range of different markets. This open integration platform means that Sentek probes can be connected to a range of other technologies and data retrieval systems.



