Environment
 
    Chlorophyll Meter

Chlorophyll Meter

  • Detects stress earlier than visual monitoring
  • Technology based on an exclusive patent license from NASA
  • Laser guides outline the edges of the measured sample area

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“Point-and-shoot” technology to instantly measure relative chlorophyll content


  • Detects stress earlier than visual monitoring
  • Technology based on an exclusive patent license from NASA
  • Laser guides outline the edges of the measured sample area
  • Calculates and displays a running average for multiple readings
  • Connects to any GPS receiver that has a serial output option*
  • Equipped with internal data logger and RS-232 port
  • Records 3,250 measurements (1,350 with added GPS/DGPS option)
  • Configure and download meter with FieldScout® software (not included)**
  • Compatible with SpecMaps™ online web-mapping application
  • Includes hard carrying case and batteries


*  GPS interface requires two cables.  The GPS/DGPS cable (item 2950CV5) is available from Spectrum.

A PC serial interface cable supplied by the manufacturer of the GPS receiver is also required.

**  PC cable connects to a computer USB port. 

 

Measurement SamplePlant leaves, turf grass canopy
Measurement SystemReflectance; Ambient and reflected 700 nm and 840 nm light are used to calculate the relative chlorophyll index
Measurement AreaConical viewing area between 12 and 72 inches
Minimum Distance12 inches (30.5 cm) from lens
Maximum DistanceAccuracy is unknown beyond 72 inches from lens
Distance from lens :Sample Area (Diameter)
12 in (30.5 cm) 0.53 in (1.35 cm)
18 in (45.7 cm) 1.21 in. (3.07 cm)
48 in (1.22 m) 4.65 in. (11.8 cm)
Receptor(4) photodiodes; (2) for ambient light and (2) for reflected light from the sample (leaf)
Measurement UnitsIndex of relative chlorophyll content; 0 to 999
Measurement Interval2 seconds per measurement
Repeatability±5% of reading
Data loggerRequires software and PC interface cable
Capacity:
  • 1,350 measurements with GPS/DGPS
  • 3,250 measurements without GPS/DGPS
  • nonvolatile memory
Battery/Life2 "AAA" batteries (included); approx. 3.000 measurements