Spectrum Technologies, Inc

- Model CM 1000 - NDVI Chlorophyll Meter



FieldScout CM 1000 NDVI Chlorophyll Meter “Point-and-shoot” technology to instantly measure red (660 nm) and near infrared (840 nm) spectral bands; Detects stress earlier than visual monitoring. Computes Normalized Difference Vegetative Index (NDVI). 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 (included)**. Compatible with SpecMaps online web-mapping application.  Includes hard carrying case and batteries.

  • Measurement Sample: Plant leaves, turf grass canopy
  • Measurement System: Reflectance of 660 nm and 840 nm light
  • Measurement Area: Conical viewing area between 12 and 72 in
  • Minimum Distance: 12 in (30.5 cm) from lens
  • Maximum Distance: Accuracy is unknown beyond 72 in 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, turf)
  • Measurement Units: NDVI (Normalized Difference Vegetation Index on a scale of -1 to 1
  • Measurement Interval: 2 seconds per measurement
  • Repeatability: ±5% of reading
  • Data Logger: Requires software and PC interface cable; Capacity:
  • 1,350 measurements with GPS/DGPS; 3,250 measurements without GPS/DGPS; nonvolatile memory
  • Battery/Life: 2 AAA batteries (included); approx. 3,000 measurements

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