The Standard in

Plant Stress Measurement



Anthocyanin Content Meter.

The ACM-200 plus Anthocyanin Content Meter provides an estimate of anthocyanin content on intact leaves of plants and flowers. The measurement is rapid, nondestructive, and simple to obtain, allowing researchers to gather reliable data that has been shown to correlate to chemical testing.


Note: It should not be used with samples that have high chlorophyll content.


  • Stores up to 50,000 measurements
  • Displays Anthocyanin Content Index
  • Ability to calculate sample averages (from 2-30)
  • Integrated GPS/GLONASS location receiver
  • Data is stored in comma delimited files
  • USB port for easy data transfer
  • Lightweight, hand-held design, optimized for field work
  • Graphic data display
  • An affordable instrument that works with leaves and flowers. Works well with samples that do not have a high chlorophyll content (van den Berg A.K., Perkins T.D. 2005), (Morris J.B., Wang M.L. 2007). One handed operation. Averaging options.

  • Measured Parameters:

    Optical absorbence in two different wavebands: 530nm & 931nm.

    GPS location.

    Measurement Area:

    3/8" diameter circle, (0.71 cm2).


    +/- 0.1 ACI Unit.


    +/- 1%.


    Green LED (peak at 530nm).

    Infrared LED (peak at 931nm).


    Silicon photodiode.

    GPS location:

    Built in GPS / GLONASS 12 channel receiver with internal antenna.

    Storage Capacity:

    Up to 50,000 data measurements.

    Data Modes:

    Single point measurement.

    2 to 30 point averaging.

    10 to 30 point averaging with elimination of fliers outside a two sigma standard deviation.

    User Interface:

    128 x 32 pixel graphic display, beep signals, keys for: setup, measurement protocols, diagnostics, data control and user input of alphanumeric comment lines.


    USB removable storage device standard. Comma delimited files.

    Temperature Range:

    0 - 50oC, non condensing.

    Power Source:

    9V Alkaline Battery.

    Auto Off Interval:

    4 minutes (no key press or data download).


    152(L) x 82(W) x 25(D) mm.

    Weight with battery:

    210 g.

    Specifications subject to change without notice.

  • PDF document.

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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