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Apogee Instruments - Model SQ-640 - ...

Apogee Instruments - Model SQ-640 -QUANTUM LIGHT POLLUTION SENSORS (SQ-640)

Many plants are affected by interruptions in dark periods even by extremely dim light. Apogee’s new Quantum Light Pollution Sensor is designed to detect photons from 340-1040 nm that are below the sensitivity level of a typical quantum sensor. Detecting stray photons that disrupt the night is critical in preventing negative effects in plants such as plant hermaphrodism and stunted growth. The patented, dome-shaped aluminum head is cosine-corrected, self-cleaning, and fully-potted for a waterproof design.