Z965 LaiPen measures Leaf Area Index (LAI), which is defined as the one-sided green leaf area per unit ground surface area (LAI = leaf area/ground area, m2 / m2) in broad leaf canopies. The LaiPen calculates LAI and other canopy structure attributes from solar radiation measurements made with a wide-angle optical sensor. Measurements made above and below the canopy are used to determine canopy light interception at five angles, from which LAI is computed using a model of radiative transfer in vegetative canopies.
In addition to LAI, Z965 LaiPen also measures photosynthetically Active Radiation (PAR)
The Z965 LaiPen was designed by scientists and engineers to provide quick and reliable results. Unlike other similar devices measuring LAI, the Z965 LaiPen is accurate in most daylight conditions and does not require cloud cover or specific sun angles for its operation.
LaiPen can work in two operation modes:
- Single sensor mode – reference measurement is taken before, after or during measurement with the same instrument;
- Two sensor mode – second instrument is used for automatic logging of reference signal.
Optional Accessories available: standard tripod and carrying rod.
- Small hand-held instrument for LAI and PAR measurements
- User friendly, two button operation
- Includes both Bluetooth and USB data transfer modules
- Rechargeable Li-ion battery
- Build in GPS module
- User friendly software for PC
- Crop Production Research
- Forestry Research and Management
- Crop Screening
- Carbon Cycle research
Measured Parameters:
– Leaf Area Index (LAI)
– Photosynthetically Active Radiation (PAR)
Detector Wavelength Range:
– 400 to 700 nm bandpass filters for PAR measurement
– 400 to 500 nm bandpass filters for LAI measurement
View Restricting Cap:
– Horizontal field of view: 112º
– Vertical field of view: 16º
Foliage Inclination of Measurement: View angles: 0º, 16º, 32º, 48º, 64º
Memory Capacity: 16Mbit
Communication for data transfer: USB and Bluetooth
Internal Data Logging: Up to 100,000 data points
Display: 2 × 8 characters LC display
Keypad: Sealed, 2-key tactile response
Keypad Escape Time: Turns off after 5 minutes of no use
Power Supply: Li-ion rechargeable battery
Battery Capacity: 2000 mAh
Max. Charging Current: 0.5 A
Charging via USB port: PC, power bank, USB charger, etc.
Battery Life: 48 hours typical with full operation
Low Battery Detection: Low battery indication displayed
Size: 120 mm × 57 mm × 30 mm 4.7″ × 2.2″ × 1.2″
Weight: 180 g, 6.5 oz
Operating Conditions:Temperature: 0 to 55 ºC; Relative humidity: 0 to 95 % (non-condensing)
Storage Conditions:Temperature: -10 to +60 ºC; Relative humidity: 0 to 95 % (non-condensing)
