Apogee Red – Far-Red Sensors
Measurement of Red – Far-Red for plant growth influences
Measuring light in the Red – Far-red range of 645nm to 665nm (red) and 720nm to 740nm (far-red), the Apogee Red – Far-red sensors measure the ratio of Red – Far-red which influences plant height, leaf expansion rates and other responses to light.
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Email: sales@ictinternational.com.au
Phone: 02 6772 6770 (between 9am to 5pm New South Wales time)
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Output options
The sensor is available in analogue, SDI-12 or Modbus outputs.
- S2-131-SS: Red – Far-red Sensor, Analog mV output.
- S2-431-SS: Red – Far-red Sensor, SDI-12 output.
- S2-432-SS: Red – Far-red Sensor, Modbus output.
Specifications
Full technical specifications can be found on the Apogee Instruments Website
Accessories
Accessories can be found on the Apogee Accessories page
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Accessories

Apogee Accessories
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This product has multiple variants. The options may be chosen on the product page







