Apogee Instruments - S2-141 PAR-FAR Sensor

Brand: Apogee Instruments

The Apogee S2-141 measures PAR (400-700 nm) and far-red (700-760 nm) together to track the far-red fraction of a spectrum, accurate under all light sources including LEDs. Choose the output.

Both versions share the same two-band detector; only the output differs.

Available Options

• Analog output (S2-141-SS)
• SDI-12 digital output (S2-441-SS)

Key Features

• Simultaneous PAR and far-red channels
• Quantify far-red fraction for crop steering
• Waterproof, cosine-corrected
• Made in the USA and backed by Apogee's industry-leading warranty and support.

Ideal Applications

• Far-red supplementation tuning
• PAR plus far-red monitoring
• Photobiology research