VH400 Soil Moisture Sensor Probe Specifications
Power consumption: < 13mA
Supply Voltage: 3.5V to 20 VDC.
Dimensions See drawing.
Power on to Output stable: 400 ms
Output Impedance: 10K ohms
Operational Temperature: -40ºC to 85ºC
Accuracy at 25°C: 2%
Output: 0 to 3V related to moisture content
Shell Color: Red
Voltage Output Curves: Curves, Piecewise...
A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 52K measurements.
IMPORTANT INFORMATION
Requires HOBOware software and either an Optic USB Base Station or a HOBO Waterproof Shuttle (U-DTW-1).
HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.
The PSI AquaPen is a lightweight hand-held PAM fluorometer that is convenient for quick, reliable and easily repeatable measurements of photosynthetic parameters in both algal and cyanobacterial suspensions. The AquaPen-C is equipped with blue and red LEDs, optically filtered, and precisely focused, to deliver light intensities of up to 3,000 µmol.m-2.s-1 to suspensions. Blue excitation light is used for chlorophyll excitation in algal cultures. Red-orange excitation light is used for excitation through phycobilins, and is more suitable for use with cyanobacterial cultures. The AquaPen-P is equipped with a single blue LED emitter (optionally red or white).
AquaPen AP 110-C and AquaPen AP 110-P AquaPen is a lightweight hand-held PAM fluorometer that is very convenient for quick, reliable, and easily repeatable measurements of photosynthetic parameters both in algal and cyanobacterial suspensions. AquaPen-C is equipped with blue and red LED emitters, optically filtered and precisely focused to deliver light intensities of up to 3,000 µmol.m-2.s-1 to measured suspensions. Blue excitation light is intended for chlorophyll excitation, i.e., for measuring chlorophyll fluorescence in algal cultures. Red-orange excitation light is intended for excitation through phycobilins and is suitable for measuring in cyanobacterial cultures. AquaPen-P is equipped with a single blue LED emitter (optionally red or white).
AquaPen is available in two versions. AquaPen AP 110-C is a cuvette version of the AquaPen fluorometer and contains an inbuild turbidometer for measurement of optical density. AquaPen AP 110-P is a probe version of AquaPen, which allows the same measurements of chlorophyll fluorescence in suspension by directly placing the probe in the suspension medium.
Due to ultra-high sensitivity – up to 0.5 µg Chl/l – the AquaPen AP 110-C can measure natural water samples containing very low concentrations of phytoplankton.
Measured data are sequentially stored in the internal FluorPen memory. Data transfer is via USB or Bluetooth communication. Comprehensive FluorPen 1.1 software provides data transfer routines and many additional features for data presentation in tables and graphs.
APPLICATIONS Photosynthesis research of algal and cyanobacterial suspensions Detection of algal content in water Phycology & Limnology Oceanography Biotechnology AQUAPENS MEASURE 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. Optical Density (only AquaPen-C) : by two IR LEDs (720 nm, 680 nm) SOFTWARE FluorPen 1.1 software (Windows 7 or higher compatible*) Bluetooth and USB communication Real-time and remote control functions Export to Microsoft Excel GPS mapping Versions AquaPen-C AP 110-C is a cuvette version of the AquaPen fluorometer and contains an inbuild turbidometer for measurement of optical density. AquaPen-P AP 110-P is a probe version of AquaPen, which allows the same measurements of chlorophyll fluorescence in suspension by directly placing the probe in the suspension medium.
Key Features
Fast and accurate measurement of photosynthetic parameters
Rapid measurements of chlorophyll fluorescence induction kinetics
Laboratory and field applications
Ultra-high sensitivity
Rugged and compact
Easy-to-use two-button operation
Comprehensive software for data processing
USB and Bluetooth communication for data transfer
Built-in GPS module
Rechargeable lithium-ion battery via PC USB port
Accessories Control and data unit for portable devices Small portable notebook (type according to current market availability).
Spare USB communication cable Spare USB cable that allows the connection between the "pen" type devices and a PC (the device is delivered with a USB cable, which is included in the price of the device).
Set of 10 cuvettes for AquaPen-C Set of ten 4 ml plastic cuvettes used in the AquaPen-C.
Accessories
Battery replacement
and device recalibration * Replacement of the internal rechargeable battery and recalibration of the device.
Control and data unit for handheld devices * Small handheld (type according to current market availability).
Spare USB communication cable * Spare USB cable that allows connection between the "pen" devices and a PC (the "pen" device is delivered with a USB cable).
Set of 10 cuvettes for AquaPen-C * Set of ten 4 ml plastic cuvettes used in the AquaPen-C.
Product Details
AquaPen-C AP 110-C
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514‐05 0.5% NaCl Standard Solution
For calibration point of LAQUAtwin Salt-22 and LAQUAtwin Salt-11 meter
Each bottle of calibration solution allows for approximately 30 calibrations
Volume of each bottle 14 ml
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