Monitoring Pen

The Monitoring Pen is an improved version of the popular FluorPen, featuring hardware enhancements such as a robust, durable case. It is available in both splash-proof and waterproof, submersible versions. This upgraded model still offers the same fluorescence parameters and protocols: Ft, QY, OJIP, NPQ, and Light Curve. Its construction is designed for long-term, unattended monitoring of chlorophyll fluorescence parameters in indoor or outdoor experiments, even in challenging environments like polar regions or underwater. An external battery ensures continuous measurement over months or even years. Read more

Rapid and accurate measurement of photosynthetic parameters

PAM ChlF protocols & Fast ChlF induction kinetics OJIP

Autonomous operation with onboard data storage

Battery-powered operation for up to 365 days

Optional online data acquisition

Advanced FluorPen software for data transfer and further processing

The Monitoring Pen is an upgraded version of the popular FluorPen, boasting a robust and durable metal case designed specifically for demanding field and underwater applications. Available in both splash-proof MP 100-E and waterproof, submersible versions MP 100-A, this enhanced model provides the same reliable fluorescence parameters and protocols: OJIP the fast ChlF induction kinetics and a variety of PAM (Pulse Amplitude Modulated) ChlF protocols such as Ft, QY, NPQ, and Light Curve. Its rugged construction ensures it can withstand long-term, unattended monitoring of chlorophyll fluorescence parameters in both indoor and outdoor experiments, even in extreme environments such as polar regions and underwater settings.

The Monitoring Pen's external battery supports measurements over months or even years. It features programmable autonomous operation with an automated switch-on function, allowing for extended self-governing, battery-powered use. Data is sequentially stored in the device's internal memory and can be transferred to a PC via USB. The comprehensive FluorPen 1.1 software facilitates data transfer and offers numerous features for presenting data in tables and graphs.

An external battery pack is essential for a functional monitoring setup. The Monitoring Pen itself lacks an internal battery, relying only on a small backup battery for maintaining system settings and the real-time clock (RTC).

The standard battery pack, which is rechargeable, is compatible with all MP versions. For extreme conditions ranging from -40 to +60 degrees Celsius, the Enhanced Temperature Range Battery Pack is available. This pack contains special non-rechargeable Li batteries that must be replaced once discharged.

APPLICATIONS Photosynthetic performance monitoring Long-term environmental monitoring Plant screening & field studies Stress physiology Agriculture & forestry Oceanography: coral and seaweed research

Photosynthetic performance monitoring

Long-term environmental monitoring

Plant screening & field studies

Oceanography: coral and seaweed research

MONITORING PEN MEASURES Ft - continuous fluorescence yield in non-actinic light. Ft is equivalent to F 0 if the leaf sample is dark-adapted. QY - photosystem II Quantum Yield. QY is equivalent to Fv/Fm in the dark-adapted samples and to Fv'/Fm' in the light-adapted samples. OJIP - Chlorophyll Fluorescence Induction Kinetics. The OJIP curves enable observing major changes that occur during exposure of plants to high irradiance. NPQ - Non-Photochemical Quenching. The NPQ protocol is the most typically used measuring approach to quantify photochemical and nonphotochemical quenching. The measurement should be performed with a dark-adapted sample. Light Curve (QY) - Photosystem II Quantum Yield estimated from fluorescence that is measured sequentially in several different light levels.

Ft - continuous fluorescence yield in non-actinic light. Ft is equivalent to F 0 if the leaf sample is dark-adapted.

QY - photosystem II Quantum Yield. QY is equivalent to Fv/Fm in the dark-adapted samples and to Fv'/Fm' in the light-adapted samples.

OJIP - Chlorophyll Fluorescence Induction Kinetics. The OJIP curves enable observing major changes that occur during exposure of plants to high irradiance.

NPQ - Non-Photochemical Quenching. The NPQ protocol is the most typically used measuring approach to quantify photochemical and nonphotochemical quenching. The measurement should be performed with a dark-adapted sample.

Light Curve (QY) - Photosystem II Quantum Yield estimated from fluorescence that is measured sequentially in several different light levels.

SOFTWARE FluorPen 1.1 software (Windows 7 or higher compatible) Real-time and remote control functions Bluetooth and USB communication Visualization and data transfer routines to Microsoft Excel (optional) GPS mapping

FluorPen 1.1 software (Windows 7 or higher compatible)