Multi channel photosynthetically active radiation recorder

PAR-ⅡMulti channel photosynthetically active radiation recorder

Product Overview

PAR-ⅡMulti channel photosynthetically active radiation recorderIt is a high-precision lighting monitoring system that integrates data collection, real-time display, massive storage, and convenient navigation. The instrument is equipped with 8 independent photosynthetically active radiation (PAR) sensors, which can synchronously monitor light data from up to 8 different locations. Its 7-inch color touch screen provides an intuitive human-computer interaction interface, suitable for fields such as agricultural light resource assessment, facility agriculture light environment regulation, ecosystem productivity research, and teaching research that require long-term, multi-point synchronous monitoring of photosynthetically active radiation.

Main applications

Research on Agricultural Meteorology and Light Resources: Monitoring and Evaluation of Canopy Light Distribution in Farmland and Orchard.

Crop modeling and precision agriculture: providing accurate photosynthetically active radiation input data for crop growth models.

Facility agriculture environmental regulation: monitoring of internal light environment and optimization of supplementary lighting strategies in greenhouses and plant factories.

Ecological research: Study on photosynthetic productivity and carbon flux of ecosystems such as forests and grasslands.

Teaching and Research: Experimental and research projects related to plant physiology, ecology, and environmental science courses in higher education institutions and research institutes.

Technical Specifications

Measurement performance

Measurement principle: High sensitivity silicon photodetector (response band 320-730nm) is used, equipped with precision optical filter, to accurately measure the photosynthetically active radiation (PAR) in the 400-700nm band.

Measurement unit: μ mol · m ⁻² · s ⁻¹ (micromoles per square meter per second)

Measurement channel: 8-channel independent synchronous measurement

Measurement range: 0-2500 μ mol · m ⁻² · s ⁻¹

分辨率： 1 μmol·m ⁻²·s⁻¹

Response time: ≤ 10 μ s (microseconds)

Linearity: ≤± 1% (within the full range)

Measurement accuracy: ≤± 3% (relative to standard light source)

Long term stability: Change within one year<± 2%

System and Operation

Display and operation: 7-inch color capacitive touch screen, supporting real-time data display, historical curve browsing, and all parameter settings.

Data storage: Built in 16GB high-speed storage card, supporting long-term continuous recording of massive data.

Data export: Standard USB interface, connected to a computer through a data cable to directly read and store data files.

Sampling interval: Users can freely set it, ranging from 1 second to 1000 seconds.

Power supply method: Built in rechargeable battery pack to meet the monitoring needs of long-term outdoor environments without mains power.

System Composition

Host unit: integrated data collector, 7-inch touch screen, storage module, and battery.

Sensors: 8 high-precision photosynthetically active radiation sensors (standard, including sufficient length of connecting cables).

Standard accessories:

USB cable

battery charger

Universal installation bracket

Detailed user manual

Product Features

Multi point synchronous monitoring capability: independently designed with 8 channels, it can simultaneously compare and monitor different positions, treatments, or canopy heights of light, meeting the requirements of complex experimental design.

Intelligent on-site operation: The large-sized touch screen makes on-site data viewing, device configuration, and status monitoring extremely convenient, without the need to connect to a computer.

*Field adaptability: With built-in power supply and portable design, it is particularly suitable for long-term deployment in environments such as greenhouses, wilderness forests, and experimental fields without stable mains power.

Research grade data reliability: Using high-precision and high stability sensor cores, combined with strict calibration processes, to ensure the accuracy and long-term comparability of the obtained data.

Ultra long battery life and flexible recording: The large capacity battery combined with user adjustable sampling intervals can achieve continuous automatic monitoring from days to months, greatly reducing maintenance frequency.

Optional accessories

To meet more specific research needs, this instrument can be optionally equipped with:

Angle sensor: used for precise measurement and recording of the installation angle of the sensor.

Dedicated PAR sensor bracket: facilitates fixing the sensor at a specific height and angle.

Solar power supply system: provides continuous power guarantee for long-term monitoring in remote areas.