About...

PSI's Monitoring Pen is a lightweight, portable and durable PAM fluorometer. It is an extended version of the popular FluorPen. Its robust and weatherproof construction allows the Monitoring Pen to be used for long-term, unattended monitoring of chlorophyll ﬂuorescence parameters in lab or field experiments, even in challenging environmental conditions. It is battery operated (internal or external battery) and can be provided with an optional solar panel power supply.

The Monitoring Pen is capable of measuring Ft, QY, OJIP, NPQ, and has automated Light Curve protocols. Its is invaluable for studying photosynthetic activity, long-term monitoring of photosynthetic performance in naturally changing environmental conditions, stress detection, herbicide testing, and for monitoring growth performance in controlled environments and field conditions.

Key Features

Rugged and compact device constructed for unattended extreme outdoor conditions
Autonomous operation and data storing
Up to 365-days of battery-powered operation (optional solution)

Pre-programmed protocols for common ﬂuorescence parameters (Ft, QY, OJIP, NPQ) and for Light Curves
Online data acquisition (optional solution)
Sophisticated FluorPen software for data transfer routines and further processing

Monitoring Pen

MonitoringPen is a lightweight, portable and durable PAM fluorometer. It is an extended version of the popular FluorPen. Due to its robust and weatherproof construction the Monitoring Pen is designed for long-term, unattended monitoring of chlorophyll ﬂuorescence parameters in lab or field experiments, even in rough environmental conditions. It is battery operated (internal or external battery) and it may optionally use a solar panel as a power supply.

Monitoring Pen is capable of measuring five most frequently used ﬂuorescence parameters: Ft, QY, OJIP, NPQ, and Light Curve. Thus it can be effectively used for studying photosynthetic activity, long-term monitoring of photosynthetic performance in naturally changing environmental conditions, stress detection, herbicide testing, or growth performance monitoring in controlled and field conditions.

Monitoring Pen features programmable autonomous operation with automated switch ON function, which allows long lasting and self-governing battery-powered operation. Measured data are sequentially stored in the internal FluorPen memory. Data transfer to a PC is via USB or Bluetooth communication. Comprehensive FluorPen software provides data transfer routines and many additional features for data presentation in tables and graphs.

Additionally, numerous monitoring units can be linked together and operated from the central steering unit, which is linked to a data logger and mobile modem for online data transfer (optional).

APPLICATIONS

Photosynthetic performance monitoring
Long-term environmental monitoring
Plant screening & field studies
Stress physiology
Agriculture & forestry
Oceanography: coral health

Ft - continuous fluorescence yield in non-actinic light. Ft is equivalent to F₀ 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.

PAR - Photosynthetically Active Radiation measured as Photosynthetic Photon Flux Density (PPFD) (only in PAR-FluorPen FP 110)

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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

Versions

Monitoring Pen MP 100-E

Durable, battery-powered ﬂuorometer intended for autonomous use in feld conditions. It features
a waterproof metal case, measuring probe, thread for tripod attachment, external pack with batteries and the FluorPen 1.1 software for data collection and processing. Final confguration (working outdoor conditions, request for data logger, requirements for battery life, etc.) must be consulted prior to order.

Monitoring Pen MP 100-A

Submersible, battery-powered fluorometer intended for underwater measuring of fluorescence parameters (also autonomous). It features a waterproof case, measuring probe, and the FluorPen 1.1 software for data collection and processing. External battery pack with batteries is sold separately. Final configuration (working outdoor conditions, water depth, frequency of measurements, requirements for battery life, etc.) should always be consulted with PSI prior to order. The device is manufactured in two different versions.

Monitoring Pen MP 100-A/A is intended for maximum water depth up to 2 meters. The device is equipped with two buttons that alow direct control of the device (even under water) by the user.

Monitoring Pen MP 100-A/B can be used in deeper water (maximum 10 m). There are no buttons on the device. This version is intended for automatic measuring; the device control is enabled via commands preprogrammed in a PC (placed on shore). The device is usually fixed in static position under water.

Specifications

Measured/Calculated Parameters: F₀ ; F_t ; F_m ; F_m' ; QY ; OJIP ; NPQ 1,2,3 ; LC 1,2,3 ;

Cosine Correction: Cosine corrected up to 80° angle of incidence

Saturating Pulse Illumination: Adjustable from 10 to 100 % (up to 3,000 µmol.m^-2.s^-1)

Actinic Illumination: Adjustable from 10 to 1000 µmol.m^-2.s^-1

Measuring Illumination: Adjustable from 10 to 100 % (from 0.01 up to 0.09 µmol.m^-2.s^-1 per pulse)

LED Emitter specification: Blue (455 nm)

Detector Wavelength Range: PIN photodiode with 667 to 750 nm bandpass filters

FluorPen 1.1 Software: Windows 7, or higher

Memory Capacity: 16 Mbit

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: External battery pack

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: 135 × 65 × 33 mm

Weight: 188 g

Sample Holder: Mechanical leaf clip closed or open

Operating Conditions: Temperature: 0 to 55 °C, Relative humidity: 0 to 95 % (non-condensing)

Storage Conditions: Temperature: -10 to 60 °C, Relative humidity: 0 to 95 % (non-condensing)

Accessories

Standard Battery Pack

Standard battery pack is intended for operation within temperature range: +10 ºC/+40 ºC. It includes: battery case with rechargeable sealed lead acid battery (12Ah) and charger. Operating time: up to 2 years (QY measurement every 1 hour).

Extended Temperature Range Battery Pack

This battery pack is intended for operation within temperature range: -40 ºC/+60 ºC. It includes: battery case with non-rechargeable Li-SOCl2 battery (5.5Ah). Operating time: up to 2 years (QY measurement every 1 hour).

Battery for Use with Extended Temperature Range Battery Pack

Spare battery for extended temperature range battery pack.

Mini-Computer

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

Substitute Set of Serial Cables for the MP 100-E

Substitute serial cables (2 pcs) allowing connection between the MP 100-E device + Battery Pack and between the Battery Pack + PC.

Substitute Set of Serial Cables for the MP 100-A

Substitute serial cables (2 pcs) for underwater use allowing connection between the MP 100-A + Battery Pack and between the Battery Pack + PC.

Mini Tripod

Small (table-top like) tripod holder providing with the flexibility to pick the ideal location for Monitoring Pen readings in a field. Intended for use with MP 100-E.

GPS Module

To record the exact location of the measurements performed by the Monitoring Pen.

Documents

FluorPen and Monitoring Pen Manual 2. 2019 (pdf)

FluorPen Explain (pdf)

Software

FluorPen 1.1.1.2 software (exe)

USB Driver for FluorPen and PAR FluorPen (exe)

Pricing

Monitoring Pen

Version	Characteristics	Price
Monitoring Pen MP 100-A	Submersible, battery-powered fluorometer intended for underwater measuring of fluorescence parameters (also autonomous). It features a waterproof case, measuring probe and the FluorPen 1.1 software for data collection and processing. External battery pack with batteries is sold separately.	4,899 €
Monitoring Pen MP 100-E	Durable, battery-powered fluorometer intended for autonomous use in field conditions. It features a waterproof metal case, measuring probe, thread for tripod attachment, and the FluorPen 1.1 software for data collection and processing. External battery pack with batteries is sold separately.	3,499 €

Accessories

Standard Battery Pack *	Standard battery pack is intended for operation within temperature range: +10 ºC/+40 ºC. It includes: Battery case with rechargeable sealed lead acid battery (12Ah) and charger. Operating time: up to 2 years (QY measurement every 1 hour).	390 €
Extended Temperature Range Battery Pack *	This battery pack is intended for operation within temperature range: -40 ºC/+60 ºC. It includes: Battery case with non-rechargeable Li-SOCl2 battery (5.5Ah). Operating time: up to 2 years (QY measurement every 1 hour).	390 €
Battery for Use with Extended Temperature Range Battery Pack *	Spare battery for extended temperature range battery pack.	90 €
Substitute set of serial cables for the MP 100-E*	Substitute serial cables (2 pcs) allowing connection between the MP 100-E device + Battery Pack and between the Battery Pack + PC.	49 €
Substitute set of serial cables for the MP 100-A*	Substitute serial cables (2 pcs) for underwater use allowing connection between the MP 100-A + Battery Pack and between the Battery Pack + PC.	69 €
Mini-Computer *	Small, portable notebook (type according to current availability on the market).	390 €
Mini Tripod *	Small (table-top like) tripod is intended to be used with the Monitoring Pen.	29 €
GPS Module *	To record the exact location of measurements performed by the pen-category instruments.	249 €