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Enabling better global research outcomes in soil, plant & environmental monitoring.

CI-203 Wand Leaf Area Meter

The CI-203 Handheld Laser Area Meter is a portable instrument for the non-destructive measurement of leaf area. The CI-203 can be adapted to have a conveyor for the continuous measurement of a large number of leaf samples. The CI-203 uses advanced laser technology to enable researchers a precise and convenient way to measure leaf area (or the areas of leaf-like objects). The CI-203 has been upgraded to offer a host of new features that will augment data sets and make collection quicker and easier. Through new technology, measurement consistency and repeatability has been vastly improved.

CI-203 Handheld Laser Area Meter Features

  • One-Touch Data: Simply sweep the CI-203 over a leaf to yield six measurement parameters: area, width, length, perimeter, shape factor, and aspect ratio
  • Durable and lightweight
  • Improved consistency of measurements
  • Improved handling of delicate leaves
  • Graphic display and rendering of leaf images for verification of a successful scan and auditing of data
  • Built in GPS tagging to provide location data for each measurement
  • SD Card for data storage
  • Standard USB charging and data download
  • Ideal for field work and very easy to use
  • Non-destructive measurements
  • No calibration required
  • Rechargeable battery
  • Measures objects up to 150mm (254mm with conveyor) wide and 25mm thick of virtually unlimited length
  • Conveyor Attachment (CI-203CA) is available for fast measurement in the field or lab
  • Root Length Measurement Attachment (CI-203RL) is available

Specifications

Upper Limit Measuring Thickness: 15mm maximum
Measuring Width: 150mm maximum
Measuring Length: 3m maximum
Resolution: .01cm²
Accuracy: ± 1% for samples >10cm²
Interface: USB 2.0
Measuring Units: cm² (area), cm (length, width, and perimeter)
Memory Size: 4GB SD card
Display: Transflective Graphic Display
Scanning Speed: 200mm/second
Battery: 7.2 volt rechargeable NiMH
Battery Capacity: Over 250 scans per charge
Operating Temperature: 0 – 50° C
Dimensions: 35.5cm × 4.5cm × 5cm (LxWxH)
Weight: 750g

The CI-203 is, without question, the best leaf area meter in the market. We have also improved the instruments ability to accurately measure delicate leaves, including a feature that allows the researcher to see an image after each measurement to insure a successful scan. Built-in GPS tagging adds a location for each data set and the removable SD card provides an easy and fast way to download data to your computer.

The high-resolution laser scanner, data logger, and display are all enclosed in a single, handheld wand unit weighing 910g. Researchers can perform non-destructive measurements on leaves of living plants by simply pulling a leaf through the instrument, enabling collection of data from the same plant, or even the same leaf, throughout its life span. For rapid measurement of detached leaves, the CI-203CA, conveyor attachment makes a perfect complement to the CI-203.

  • Graphic display and rendering of leaf images for verification of a successful scan and auditing of data
  • Built in GPS tagging to provide location data for each measurement
  • Non-destructive measurements
  • No calibration required
  • One-Touch Data: Simply sweep the CI-203 over a leaf to yield six measurement parameters: area, width, length, perimeter, shape factor, and aspect ratio
  • Durable and lightweight
  • Improved consistency of measurements

The CI-203 collects length, width, perimeter, and area measurements directly using a combination of a sweeping laser beam and an optical motion sensor. After activating the device by pressing the key, a low energy laser beam sweeps across the laser window 500 times per second at a rate of 150 m/s. As the user moves the CI-203 wand down the leaf, an optical sensor records the motion, and the onboard processing unit collects the data. Each laser sweep uses the optical sensor data to correctly accumulate the area and perimeter measurements. When the optical sensor detects that vertical motion has stopped, the laser subsystem stops taking measurements and the processing unit computes and posts the final results.

What is in the Box

  • Laser leaf area meter main unit
  • Internal battery
  • Battery charger
  • Micro USB cable
  • SD Card
  • Communication software
  • Operating manual
  • Hard-shell instrument carrying case