Photosynthetically active radiation (PAR) and leaf area index (LAI) are important indicators for evaluating plant health status and canopy structure. PAR represents how much light energy can be utilized by plant photosynthesis; LAI can be used to estimate canopy density and biomass, and is an important characterization parameter of plant canopy structure.AccuPARPlant canopy analyzerIt is possible to measure PAR and LAI simultaneously. The instrument undergoes calibration before leaving the factory, and the calibration values are stored in memory, so there is no need for calibration during use. AccuPAR plant canopy analyzer is widely used in research fields such as agriculture, forestry, and botany.

working principle
The probe includes 80 PAR light quantum sensors spaced 1 cm apart, used to measure changes in PAR in ambient lighting. The latitude, longitude, and time of the study area are input, and the instrument can automatically calculate the zenith angle. By setting the leaf angle distribution parameter (X) and measuring the ratio of PAR above and below the canopy, the LAI value of the plant canopy can be calculated.

Main advantages

• Economical and portable

• Real time measurement of PAR

• Simple and intuitive 7-key control

• Automatic recording mode function

• Powerful data storage capability, 1M memory

• Both random software and data can be downloaded from computer super terminals

• Low power consumption, 4 No. 7 alkaline batteries can be used for 2 years

• External PAR sensors can be used for probe calibration and real-time measurement of PAR values above and below the canopy layer

System Composition

• Control unit with sensor

• Measurement probe and external PAR sensor

• RS-232 data cable, data transmission software, user manual, and carrying case

technical indicators

Order Information
LP-80 with external PAR sensor (wire length 5m)
External PAR sensor extension cable (7.6m, 3-pin circular interface)

Origin and Manufacturer: United StatesMETERcompany_{(Former Decagon)}