The Standard in

Plant Stress Measurement



Portable Leaf Area Meter with image saving capability

Compact and portable leaf area meter suitable for the accurate, non-destructive measurement of leaf area and associated parameters. It allows the scanned image to be saved in memory for future review of data & measuring technique

Parameters measured:

  • Area
  • Accumulated area
  • Mean area
  • Visible
  • diseased leaf area or herbivory
  • Length
  • Width
  • Perimeter
  • Ratio
  • Form factor


  • Real time image display
  • High resolution
  • Battery portable - up to 3,000 measurements on a single charge
  • Stores up to 2,000 sets of data with images
  • High resolution - 0.065mm2. Works well with Arabidopsis plants
  • Non-destructive
  • Fast and simple operation
  • USB download of image and data
  • The AM350 portable leaf area meter is an update of the very popular AM300 design. It provides a stored image of the scanned leaf for later review and reliable science. Designed for field use, it is battery operated and allows fast, non-destructive, and high resolution measurement. It measures: leaf area, accumulated area, mean area, length, width, perimeter, ratio, and shape factor. Data and images may be transferred in comma delimited format by USB port.

  • Measured parameters:

    Leaf area, maximum length, maximum width, perimeter, mean area, accumulated area, ratio and shape factor.

    Units of measurement:

    User selectable: mm or cm .


    Contact image sensor array with integral LED lamp.

    Scanning speed:

    Up to 20 mm/sec.

    Maximum measurement width:

    103 mm.

    Maximum measuring length:

    2 m.

    Precision / repeatability:

    +/-1% Linear, +/- 2% Area, +/- 5% Perimeter.


    0.065 mm2.


    256K bytes RAM. (Approx. 2,000 data sets).


    64 x 240 pixel graphic LCD.


    Nickel metal hydride 1.2 Ah. Internal battery back up.

    Computer interface:

    Mini-B USB connection and RS-232.

    Battery charger:

    Built in fast charger; can use supplied mains adapter or 12V car battery. Indicators for charge status.

    Scans between charges:

    Typically 3,000 from fully charged battery.

    Operating temperature range:

    0 - 45oC.


    275 mm x 250 mm x 30 mm.


    1.8 kg.

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Opti-Sciences, Inc.     8 Winn Avenue      Hudson NH 03051       USA      (603)883-4400

Opti-Sciences, Inc.

8 Winn Ave

Hudson, NH 03051, USA

Phone: (603) 883-4400

Fax: (603) 883-4410