The Z955 N- Pen is a light-weight, battery-powered PlantPen that can be used for nondestructive in vivo measurements of N content in plants. The N-Pen measures reflectance of light at 565 and 760 nm and calculates NDGI (normalized difference greeness index) from which total N content (%). It is rugged and compact and ideal for use in the field, plant biology lab or in teaching plant biology.
Standard Z955 N pen
Z955 N pen uses 4 x AAA alkaline batteries, has a memory capacity of 4 MB (up to 100,000 data points). Measured data are numbered and may be recalled on the LCD display in sequence later (standard model). More sophisticated models incorporate Bluetooth or USB data transfer to a PC. These models come with software that allows data transfer, vusalization and export into spreadsheet programs.
the following versions of Z955 are available: Z955 – Standard with no data transfer Z955-USB with data transfer via USB and software, Z955-BT with data transfer via Bluetooth and software
- Easy, nondestructive measurements of NDGI from light reflectance
- Calculations of % N content in leaves according to available calibrations (corn, wheat, barley, temperate turf grasses)
- Transfer of NDGI and %N data via USB or BT to PC computer
- Monitoring relative N-content of crops.
- Better nitrogen management in crops and consequent yield enhancement.
- monitoring of nitrogen use efficiency.
- management of fertilizer applications
- Agronomy research.
- golf course managment
- Measured Parameters:
NDGI and calculations of % Nitrogen content as per calibration for particular plant species
- Measuring Light:
Dual wavelength light source – 565 nm, 760 nm
- Detector Wavelength Range:
500 to 800 nm bandpass filters
- Memory Capacity:
Up to 4 Mb
- Internal Data Logging:
Up to 100,000 data points
2 x 8 characters LC display
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
170 x 57 x 30 mm; 6.7″ x 2.2″ x 1.2″
180 g, 6.5 oz
- Operating Conditions:
Temperature: 0 to 55 ºC; 32 to 130 ºF. Relative humidity: 0 to 95 % (non-condensing)
- Storage Conditions:
Temperature: -10 to +60 ºC; 14 to +140 ºF. Relative humidity: 0 to 95 % (non-condensing)
1 year parts and labor
Z955-Turf N pen adapted for measurements of NDGI and % N content in turf grasess. Following versions of Z955-Turf are available: Z955-Turf standard with no data transfer, Z955-Turf-USB with USB data transfer and software, Z955-Turf-BT with Bluetooth data transfer and software