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PAR-FAR Sensors

Apogee PAR-FAR sensors combine two photodetectors to measure photosythetically active radiation and far-red radiation.
Unique two-band sensor for measuring both the PAR (PPFD) and Far-red outputs of electric grow lights
The new Apogee PAR-FAR sensor is a research-grade tool for measuring both the traditional PPFD photosynthetic photon flux and separately quantifying the photon flux of far-red photons (700-750 nm). The outputs include the traditional quantum flux, the far-red photon flux, and the far-red fraction (far-red photon flux density / sum of PPFD and far-red photon flux density).
This sensor quantifies far-red photons, and for many applications it reduces the need for a more complex measurement with a spectroradiometer.
Spectral Response
The PAR-FAR sensor has a spectral range of 400 to 700 nm ± 5 nm (PAR) and 700 to 750 nm ± 5 nm (Far-red). The spectral responses can be seen in the graph below.
Graph showing the spectral responses of the PAR-FAR sensor (spectral range of 389 to 692 nm ± 5 nm (PAR) and 702 to 761 nm &plusm; 5 nm (Far-red)).
Rugged, Self-cleaning Housing
The patented domed shapped sensor head (diffuser and body) facilitates runoff of dew and rain to keep the sensor clean and minimizes errors caused by dust blocking the radiation path. Sensors are housed in a rugged, anodized aluminum body and electronics are fully-potted.
An Apogee PAR-FAR sensor head.
An amplified PAR-FAR sensor with a built-in cable connector.
Typical Applications
Applications include monitoring plant light environments, researching plant morphogenic activity, and photobiology studies.
Mounting
The AL-120 Solar Mounting Bracket with Leveling Plate facilitates mounting the sensor to a mast or pipe. The AL-100 Solar Sensor Leveling Plate is designed to level the sensor while sitting on a flat surface or mounting to a surface.
Output Options
Available as an analog output or in digital SDI-12 or Modbus communication protocols.
High Quality Cable
Pigtail-lead sensors feature an IP68, marine-grade stainless-steel cable connectors built directly into the sensor head to simplify sensor removal for maintenance and recalibration. Cable is shielded-twisted-pair wire with a TPR jacket for high water resistance, UV stability, and flexibility in cold conditions.
Warranty and Support
All Apogee products are backed by an industry-leading four year warranty and outstanding customer support
Learn more about PAR-FAR sensor specifications.

Specifications

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Watch videos to learn more about our PAR-FAR sensors.

Videos

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Product support information for PAR-FAR sensors.

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AL-120 Solar Mounting Bracket with Leveling Plate
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AL-120 Solar Mounting Bracket with Leveling Plate

$89.99
AL-100: Solar Sensor Leveling Plate
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AL-100: Solar Sensor Leveling Plate

$59.99
AM-310: Telescopic Sensor Wand
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AM-310: Telescopic Sensor Wand

$74.99
AC-422 Modbus to USB Converter
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AC-422 Modbus to USB Converter

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About Apogee Instruments, Inc.

Address:
721 West 1800 North
Logan, UT 84321
United States of America

Hours: Monday-Friday 8 AM- 5 PM MST

Main Line / Order Status: (435) 792-4700
or sales@apogeeinstruments.com

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or techsupport@apogeeinstruments.com

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  • products
    • Quantum (PAR & ePAR) Sensors / Meters
    • Pyranometers
    • PAR, Daily Light Integral, and Photoperiod Meters
    • Oxygen Sensors
    • Chlorophyll Concentration
    • Infrared Radiometers
    • Spectroradiometers
    • Temperature Sensors
    • NDVI Sensors
    • PAR Meters for Aquariums
    • UV Sensors
    • Guardian CEA Multi-Sensor Monitor
    • Photometric Sensor
    • Net Radiometer
    • Cloudburst Weighing Precipitation Gauge
    • microCache Bluetooth Micro Logger
    • Barometric Pressure
    • Solar Energy PV Monitoring
    • Accessories
    • Pyrgeometers
    • Red - Far-red and PAR-FAR Sensors
    • Aspirated Radiation Shield
    • Humidity Probes
    • Refurbished Products
    • Radiation Frost Detector
    • Replacement Cables
    • Calibration Services
  • About Us
    • Contact Us
    • ISO 9001:2015 Certification
    • International Distributors
    • Careers
    • Apogee News
    • Newsletters
    • Company History
    • Event Calendar
    • Leadership Team
    • Apogee Cares
    • Our Founder - Dr. Bruce Bugbee
    • Wholesale Application
    • Customer Satisfaction Survey
  • Integrators
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