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Updated:2025-03-13

Brand: Spectrum
Model: FieldScout CM 1000
Description: “Point-and-shoot” technology to instantly measure relative chlorophyll content
Data download

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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 over 3,000 measurements (1,350 with added GPS/DGPS option)

Configure and download meter with FREE FieldScout software download

Includes hard carrying case and batteries

Specifications

Measurement Sample:	Plant leaves, turf grass canopy
Measurement System:	Reflectance; Ambient and reflected 700 nm and 840 nm light are used to calculate the relative chlorophyll index
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)
Measurement Units:	Index of relative chlorophyll content; 0 to 999
Measurement Interval:	2 seconds per measurement
Repeatability:	±5% of reading
Data Logger:	Requires FieldScout Software
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