LaiPen

The LaiPen LP 110 measures Leaf Area Index (LAI), defined as one-sided green leaf area per unit ground surface area (m2 per m2) in broadleaf canopies. The LaiPen LP 110 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.

The LaiPen LP 110 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 - a second instrument is used for automatic logging of the reference signal.

Single sensor mode - reference measurement is taken before, after or during measurement with the same instrument;

Two sensor mode - a second instrument is used for automatic logging of the reference signal.

Integrated sensor for measuring foliage inclination

Measurement of five different acceptance angles - light is taken from five different zenith angles to create one reading

Fast and easily repeatable measurements with instant readouts

Manual and automatic measurement

Lightweight, robust and battery-powered with simple two-button operation

Large internal data storage

USB and Bluetooth communication

LaiPen LP 110 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 broadleaf canopies. The LaiPen LP 110 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. The LaiPen was designed by scientists and engineers to provide its user quick and reliable results. Unlike in other similar devices measuring LAI, the LaiPen LP 110 is accurate in most daylight conditions and does not require cloud cover or specific sun angles for its proper performance.

LaiPen LP 110 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.

Two sensor mode - second instrument is used for automatic logging of reference signal.

LAIPEN MEASURES Leaf Area Index (LAI) Photosynthetically Active Radiation (PAR): Photosynthetically Active Radiation measured as Photosynthetic Photon Flux Density (PPFD)

Photosynthetically Active Radiation (PAR):

Studies of canopy growth and productivity

Studies of forest dynamism

Research on air pollution or insect impact on foliage health

Great for rapid, repeated measurements and for large plant screening programs

SOFTWARE Comprehensive software with data collection, analysis and visualization USB and Bluetooth communication Visualization and data transfer routines to Microsoft Excel Regular firmware updates Integrated GPS module

Comprehensive software with data collection, analysis and visualization

Visualization and data transfer routines to Microsoft Excel

Mini-Computer Small, portable notebook (type according to current availability on the market).