APAS T1 Moisture Sensor: Versatile Measurement Across Soilless Media

A frequently asked question is: "Which growing media can the APAS T1 moisture sensor accurately measure?" The answer is broad: the APAS T1 (originally developed by DurUntash Lab, LLC, San Diego, CA) is designed for optimal performance across a wide range of soilless substrates.

Notably, the APAS T1 stands out with its design and calibration specifically optimized for soilless environments, positioning it as a leading solution for soilless growers. This includes, but is not limited to, rockwool blocks, coco coir, and any medium classified as soilless.

While the sensor's compatibility is extensive, the installation procedure varies depending on the medium used.

• Coco Coir: Installation in coco coir is adaptable to the grower's specific method. Whether used in block form or as a loose substrate, the sensor can generally be buried within the coco, similar to soil installation.

  
  

• Rockwool: Special care is needed for rockwool. Reusing the same hole for sensor insertion should be avoided to ensure accurate readings.

  
  

• General Principle: Regardless of the medium, ensuring consistent and complete contact between the sensor body and the substrate is paramount. Air gaps will significantly impact measurement accuracy.

DurUntash readout devices offer adjustable settings to accommodate different installation methods.

• When installed in rockwool, where only the green blade of the sensor is in contact with the medium, the device is configured to reflect this limited contact area.

• When buried in other substrates like coco coir or mini cubes, the device is configured to account for the entire sensor body being in contact with the medium.

These setting adjustments are easily made through our user-friendly interfaces, available on both Windows and mobile platforms, ensuring accurate and reliable data regardless of the chosen growing medium.