Envco – Environmental Equipment

Measure and record Chlorophyll N measurements in just seconds with the SPAD 502 Meter - now exclusively available with or without a built-in data logger!

Assess nitrogen needs by comparing in-field SPAD readings university guidelines or adequately fertilized check or reference strips. Research shows a strong correlation between SPAD measurements and leaf N content. You benefit by increasing reducing costly under/over fertilizing, increasing N-efficiency and producing healthier, higher-yield crops.

The SPAD 502 meter can be purchased with or without a built-in data logger. The data logging version (Item 2900DL) allows you to compile readings for statistical analysis. Includes an RS-232 port for communicating with a PC* and/or portable GPS receiver**. Use geo-referenced data to correlate N measurements to yield maps or download the data into mapping software.

This robust field-data collection device has a capacity of 1,488 measurements when coupled with a GPS receiver or 4,096 measurements when used without GPS. Requires software running on Windows 98 or higher. GPS/DGPS cable required for geo-referenced operation. Use the powerful SpecMaps online application to discover the value of spatially variable sensor measurements. Mapping software requires GPS; not included.

* Spectrum’s PC cables connect to a 9-pin serial port. USB-Serial adapter (item 3661USB) required for connection to computers with only USB ports.
** 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.

Ordering Information
Item 2900 Minolta SPAD 502 Chlorophyll Meter Basic version, no Data Logger
Item 2900DL Minolta SPAD 502DL Chlorophyll Meter with RS-232 Data Port and Built-In Data Logger (includes software)

Item 2900DLUP Upgrade Field Units to include data logger and RS-232 port (includes software)
Item 2950CV5 GPS/DGPS Cable
Item 3661USB USB-to-Serial Adapter
Item 2900CASE NEW Hard Carrying Case

2950CV5 GPS/DGPS Cable