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Plant canopy analyzer（handheld）

Model：

HD-G10

Introduction：

Plant Canopy Analyzer (leaf area index meter) uses an 80-sensor PAR probe over 400-700 nm to measure light interception, PAR and leaf area index in crop canopies. Used in crop growth and yield studies, light use efficiency research, agronomy and forestry....

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I. Product Overview

The HD-G10 handheld canopy analyser is widely used in agricultural production and agricultural research. It is designed for surveys of canopy light resources and for measuring the interception of light within a plant canopy, in order to study the relationships between crop growth, yield and quality, and light utilisation. The instrument measures and records photosynthetically active radiation (PAR) in the 400–700 nm band, with the measured value expressed in micromoles per square metre per second (μmol/m²/s). Combining PAR readings with positioning information makes it possible to derive the leaf area index (LAI) of the plant canopy.

II. Key Features

The handheld canopy analyser is an integrated design comprising an LCD display, operating keys, an SD card for storage, a probe rod sensor and an external sensor. The menu is simple to operate, and the instrument is small and easy to carry. Data can be stored on an SD card or uploaded wirelessly (optional); the SD card is a standard market type with large capacity and convenient data management, while wireless uploading connects quickly and allows the measured PAR values, LAI values, zenith angle and Beidou positioning information to be viewed clearly on a web page. Power management is rational: during testing the instrument automatically enters standby mode as required, and pressing the wake-up key wakes the screen so that the actual data can be read. Measurement can be automatic or manual; in automatic mode the interval is adjustable from 1 to 60 minutes and up to 999 measurements can be taken, while in manual mode data are collected at will.

A host computer program is provided for reading and modifying device parameters, including the automatic measurement interval, backlight time, language and time zone; time synchronisation, historical data queries and Excel export are also supported.

III. Technical Parameters

ParameterSpecification
Leaf area index (LAI)Measured by combining PAR readings with positioning information
Probe rod PAR sensor — measuring range0–2700 μmol/m²/s
Probe rod PAR sensor — resolution1 μmol/m²/s
Probe rod PAR sensor — number of sensors80
External PAR sensor — measuring range0–4000 μmol/m²/s
External PAR sensor — resolution1 μmol/m²/s
External PAR sensor — number of sensors1
Cable length2 m (standard)
Automatic acquisition interval1 to 60 minutes, selectable
Data storage capacity16 GB
Display languageBuilt-in bilingual Chinese/English display with one-key switching
Probe rod length100 cm
Total instrument length128 cm
Measurement area1 m²
Power supply2 × 18650 lithium batteries (3500 mAh each)
Battery lifeUp to 20 h (limit value)
Charging inputDC 5 V, Type-C interface
Working environment0 °C to 60 °C; 100% RH
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