Holland Scientific, Inc.

- Model ACS-470 - Multi Spectral Active Crop Canopy Sensor


The Crop Circle ACS-470 active crop canopy sensor provides classic vegetation index data (NDVI, SRI and others) as well as basic reflectance information from plant canopies and soil.

Unlike passive radiometric light sensors, the Crop Circle ACS-470 is not limited by ambient lighting conditions— measurements can be made day or night due to its unique, patented (pending) light sensor technology.

For on-the-go applications, the Crop Circle ACS-470 sensor can be mounted to virtually any type of vehicle to remotely sense and/or map plant or crop canopy biomass while driving through a field. The compact size and low weight design allows Crop Circle to be easily adapted to pole-mounted and handheld applications. Information produced by the sensor can be utilized to quantify the impact of nutrients, water, disease or other growing conditions on plants or crops.


The ACS-470 incorporates three optical measurement channels. A unique feature embodied in the ACS- 470 sensor is the user’s in-field ability to select optical measurement bands of interest thereby allowing the instrument to be spectrally customized to a particular sensing application. Spectral configuration is performed via the use of standard 12.5 mm interference filters.


Using the Holland Scientific GeoSCOUT GLS-400 datalogger, data can be easily and quickly recorded to a text file on an SD flash card. Additionally, by connecting a GPS receiver to the GeoSCOUT, data collected from the ACS-470 can be georeferenced and stored for later analysis in third party GIS software.


  • Federal, state and corporate researchers
  • Crop consultants
  • Producers
  • Golf course superintendents
  • Plant physiologists/biologists

Customer reviews

No reviews were found for Crop Circle - Model ACS-470 - Multi Spectral Active Crop Canopy Sensor. Be the first to review!