Handheld reflectance meter with integrated GPS module, USB/Bluetooth communication and dedicated software. Measured parameter: actual nitrogen content using the Normalized Difference Greenness Index (NDGI).
N-Pen is a light-weight, battery-powered reflectance-based instrument that provides a convenient, cost-effective method for effective nitrogen management in plants throughout their growing season. Essentially, the N-Pen characterises nitrogen amount by means of reflectance and by the concept of a close link between chlorophyll content and nitrogen content in plants.
Rugged and compact, the N-Pen can be used in the field, in the plant biology lab, or for education. The use of the N-Pen is non-destructive and permits quick, repeated measurements throughout the growing season. It takes four AAA alkaline batteries and is supplied in a robust case.
N-Pen versions with a PC communication module – Bluetooth or USB – are also available. Comprehensive FluorPen software provides data transfer routines and many additional features for data presentation in tables and graphs.
Currently Available Calibrations:
|Measured Parameters:||Nitrogen content calibrated for particular plant|
|Measuring Light:||Dual wavelength light source – 565 nm, 760 nm|
|Optical Aperture Diameter:||5 mm|
|Detector Wavelength Range:||500 to 800 nm bandpass filters|
|Memory Capacity:||Up to 16 Mb|
|Display:||2 x 8 characters LCD|
|Keypad:||Sealed, 2-key tactile response|
|Keypad Escape Time:||Turns off after 3 minutes of no use|
|Power Supply:||4 AAA alkaline or rechargeable batteries|
|Battery Life:||48 hours typical with full operation|
|Low Battery Detection:||Low battery indication displayed|
|Size:||170 x 57 x 30 mm; 6.7″ x 2.2″ x 1.2″|
|Weight:||180 g, 6.5 oz|
|Operating Conditions:||0 to 55ºC; 32 to 130ºF. RH: 0 to 95% (non-condensing)|
|Storage Conditions:||-10 to +60ºC; 14 to +140ºF. RH: 0 to 95% (non-condensing)|
|Warranty:||1 year parts and labour|