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 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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