KONICA MINOLTA SPAD502 Plus Chloropyll Meter

GRAIN MOISTURE METER SPAD 502 Plus Chlorophyll Meter The SPAD 502 Plus Chlorophyll Meter instantly measures chlorophyll content or “greenness” of your plants to reduce the risk of yield-limiting deficiencies or costly overfertilizing. The SPAD 502 Plus quantifies subtle changes or trends in plant health long before they’re visible to the human eye. Non-invasive measurement; simply clamp the meter over leafy tissue, and receive an indexed chlorophyll content reading (-9.9 to 199.9) in less than 2 seconds. Assess nitrogen needs by comparing in-field SPAD readings to university guidelines or to adequately fertilized reference strips. Research shows a strong correlation between SPAD measurements and leaf N content. Instantly measures chlorophyll content or “greenness” of your plants on a scale of -9.9 to 199.9 Non-invasive, non-destructive measurement Trend graph stores and displays up to 30 measurements Waterproof design Compare in-field SPAD readings to university guidelines Research shows a strong correlation between SPAD measurements and leaf N content Available with or without a built-in data logger Includes hard carrying case and batteries Data-logging model (2900PDL) Connects to any GPS receiver that has a serial output option* Equipped with internal data logger and RS-232 port Records 4,096 measurements (1,488 with added GPS/DGPS option) Configure and download meter with FieldScout® software (included)** Compatible with SpecMaps™ online web-mapping application Optical Density Difference at two wavelengths: 650 nm and 940 nm Measurement Area: 2 mm x 3 mm  (Approximately 3/32 in x 1/8 in) Light Source: 2 LEDs Receptor: Silicon Photodiode Power Source: 2 AA alkaline  batteries (1.5V) Repeatability: Within ±0.3 SPAD unit SPAD Value: Index of relative chlorophyll content; -9.9 to 199.9