Ft – instantaneous chlorophyll fluorescence
Quantum Yield
OJIP
Non-photochemical quenching
Light curve
Blue (470 nm), other wavelengths on request
Saturating pulse Illumination
Up to 3,000 µmol(photon).m
-2
.s
-1
(adjustable from 10 to 100%)
Adjustable from 10 to 1,000 µmol(photon).m
-2
.s
-1
Up to 0,09 µmol(photon).m
-2
.s
-1
per pulse (adjustable from 10 to 100%)
PIN photodiode with bandpass filters
Wavelength range from 667 to 750 nm
Up to 149,000 measurements (depending on protocol)
FluorPen 1.1 (Windows 7 and higher)
Standard battery pack
operating temperature from 10 to 40 °C
rechargeable
Extended temperature range battery pack
operating temperature from -40 to 60 °C
non-rechargeable (spare battery)
Capacity 12Ah
Battery life up to 2 years of operation (1 QY measurement per hour)
2 x 8 characters LC display
Sealed, 2-key tactile response
Turns off after 5 minutes of no use
Ultra-high sensitivity down to -165dBm
High accuracy of <1.5 m in 50% of trials