Red/Far Red Spectrum Meter for Plant Cover Efficiency

Description

With the far red-red spectrum light absorption meter, you can easily find out the efficiency of the light absorption meter. vegetation cover and whether the proximity (density) between plants is optimal.

Characteristics:

Displays the Red/Far Red ratio on the LCD.
Press a button to display the 660 nm and 730 nm readings.

Plants absorb the red light (660–680 nm) and reflect far-red light (720–740 nm). Plant leaves filter light, allowing more far-red light to pass through than red light. Understanding the ratio of red to far-red light can help you determine the space the plant requires and decide when to apply growth regulators to the plant.

"Measuring DLI within a greenhouse or precision agronomic crops can be very revealing as growers or maintainers often rely on their eyes to determine light levels and the human eye is a terrible light sensor because it is not as effective at adjusting to different shades of light." James E. Faust (Associate Professor of Horticulture, Clemson University).

You may also be interested in the Ultraviolet Light Meter. This meter is useful fortil to determine the UV filtering of various greenhouse, turf or crop canopies.

Product reference for orders: PT - 112

Additional information

Accuracy.	The accuracy of ±5%
Red light	Red light is measured at 660nm.
Far red light	Far-red light is measured at 730nm.
Width at Half Height (FWHM)	30nm (±15nm).