CID BioScience Portable Leaf Area Meter CI-202

£ 4,508.52 (inc VAT)£ 3,757.10 (exc VAT)


SKU : CI-202 Category :


The CI-202 Portable Laser Area Meter uses advanced laser technology to provide researchers with a precise and convenient way to measure leaf area. The high-resolution laser scanner, data logger, and display are all enclosed in a durable, handheld scanner and detachable palette.
The CI-202 is used to perform non-destructive measurements on the leaves of living plants by placing the leaf on the palette and sliding the scanner over the leaf, enabling collection of data from the same plant, or even the same leaf, throughout its life span. The transparent, protective sheath on the palette makes it easy to capture precise leaf area measurement on tender or intricate leaves.

The CI-203 uses the same technology but is particularly useful for measuring the growth of the same leaf of a plant as a result of some treatment.

Harvest Agri Ltd is the UK distributor for CID BioScience of USA and will be happy to provide more details, answer queries and provide service. See Contact us.   However, please feel free to check their excellent website at “” or contact them directly at 01 (360) 833 8835 or by email at

Theory of Operation

Theory of Operation

The CI-202 measures length, width, area, and perimeter, and calculates ratio and shape factor once a measurement is completed.

Each time the control unit detects that the laser scanner has progressed 1 mm, the computer checks to see if the width reading is non-zero. If the width measurement is non-zero, the computer takes the following actions:

  • The length measurement is increased by 1 mm.
  • The width measurement is added to the area accumulator.
  • If the width measurement is greater than the currently stored maximum width, the maximum width is updated.

Aspect ratio is the ratio of the leaf length to its maximum width:

Shape factor is the ratio of the leaf area to the leaf perimeter, corrected so that the shape factor of a circle is equal to 1:

Technical Data

Product Features

  • Measures area, length, width, and perimeter and calculates shape factor and ratio
  • Non-destructive and versatile
  • Flattens curled leaves to provide precise measurements
  • Resolution of .01cm² Simple, straight-forward operation
  • Stores up to 8,000 single measurements
  • Lightweight and self-contained instrument with built-in data logger and LCD display
  • Rechargeable battery USB port transfers data to computer and charges the device as needed
  • No user calibration required
  • Includes operational manual and hard-shell carrying case



  • Botanists use the CI-202 to quantify phenotypic changes of measure leaf  area in-situ
  • Plant physiologists use the CI-202 to measure leaves and relate changes in shape characteristic to physiological function
  • Scientists apply the CI-202 to a range of organic and inorganic materials, like seeds, wings, and manufactured parts

To see a full list of application resources including published  research with the CI-202  Portable Laser Leaf Area Meter, please visit:



Measuring Thickness: 1.5cm maximum
Measuring Width: 15cm maximum
Measuring Length: 36cm
Scanner: 670nm laser
Resolution: 0.01cm2
Accuracy: ±1% for samples >10cm²
Interface: USB 2.0
Memory Size: 8,000 measurements
Dimensions: 38.5L x 29W x 12.5H cm
Weight: 1,500g
Display: 16 characters x 2 lines LCD
Scanning Speed: 200mm/second
Battery: 7.2 volt rechargeable NiMH
Battery Capacity: Over 250 scans per charge
Operating Temperature: 0-50°C


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£ 4,508.52 (inc VAT)£ 3,757.10 (exc VAT)

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