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Apogee original X quantums offer an accurate and cost-effective option. — Measure photosynthetically active radiation, PAR, in µmol m^-2 s^-1.

Apogee Instruments' original X quantum sensors provide accurate and cost-effective measurement of photosynthetically active radiation (PAR) from all broadband light sources used to grow plants and corals, (e.g. sunlight, metal halide, CFL). For narrow-band light sources like LEDs, we recommend our full spectrum quantum sensors.

Spectral Response

The Original X quantum sensors have a spectral range of 370 to 650 nm. The spectral response can be seen in the graph below.

Rugged, Self-cleaning Housing

Patented domed shaped sensor head (diffuser and body) facilitate runoff of dew and rain to keep the sensor clean and minimize errors caused by dust blocking the radiation path. Sensors are housed in a rugged anodized aluminum body and electronics are fully potted.

Typical Applications

PPFD measurements over plant canopies in outdoor environments, greenhouses, and growth chambers, and reflected or under canopy (transmitted) PPFD measurements in the same environments. Quantum sensors are also used to measure PPFD in aquatic environments, including salt water aquariums where corals are grown.

Ideal for Measurements in Air and Underwater

Apogee quantum sensors are calibrated to make absolute PPFD measurements in air. The waterproof sensors can be used to make absolute PPFD measurements underwater by applying an immersion effect correction factor; the MQ-210X, MQ-510, and the MQ-610 models already apply the correction factor. For details on making underwater measurements, please refer to Underwater PAR Measurements.

Calibration

To ensure accuracy each sensor is carefully calibrated in controlled conditions and traceable to NIST reference standards. The Original sensors are pre-calibrated for either sunlight or electric light sources.

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.

Accurate, Stable Measurements

Sensors are cosine-corrected to maintain their accuracy when radiation comes from low zenith angles. The sensors measure PPFD with a cosine response accurate within ± 5 % at 75° zenith angle. Long-term non-stability determined from multiple replicate quantum sensors in accelerated aging test and field conditions is less than 2 % per year.

Line Quantum Sensor Options

Line quantum sensors (multiple detectors mounted along the length of a rugged anodized aluminum bar) provide spatially averaged PPFD measurements along the length of the bar. All sensors in the line are electrically connected, resulting in a single voltage output that is directly proportional to average PPFD.

Line Quantum X Options:
SQ-301X-SS
MQ-301X-SS

Output Options

Handheld Meter Options:
MQ-100X (Replaced by DLI-400)
MQ-200X
MQ-210X (underwater)

Pigtail Analog Outputs:
0 to 250 mV
0 to 2.5 V
0 to 5 V
4 to 20 mA

Digital Outputs:
Modbus (pigtail)
SDI-12 (pigtail)
USB

µCache Packages:
PQ-100X Package: SQ-100X model (30 cm cable) with Apogee's µCache Bluetooth Micro Logger
PQ-110X Package: SQ-100X-SS2 model (2 m cable) with Apogee's µCache Bluetooth Micro Logger

High Quality Cable

Pigtail-lead sensors feature an IP68, marine-grade stainless-steel cable connector 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.

Specifications
Learn More

Videos
Learn More

Case Studies
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Support Info
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Graph showing the spectral responses of original X quantum sensor (spectral range of 370 to 650 nm ± 5 nm. — Measure photosynthetically active radiation, PAR, in µmol m^-2 s^-1.

Apogee Instruments' original X quantum sensors provide accurate and cost-effective measurement of photosynthetically active radiation (PAR) from all broadband light sources used to grow plants and corals, (e.g. sunlight, metal halide, CFL). For narrow-band light sources like LEDs, we recommend our full spectrum quantum sensors.

Spectral Response

The Original X quantum sensors have a spectral range of 370 to 650 nm. The spectral response can be seen in the graph below.

Rugged, Self-cleaning Housing

Patented domed shaped sensor head (diffuser and body) facilitate runoff of dew and rain to keep the sensor clean and minimize errors caused by dust blocking the radiation path. Sensors are housed in a rugged anodized aluminum body and electronics are fully potted.

Typical Applications

PPFD measurements over plant canopies in outdoor environments, greenhouses, and growth chambers, and reflected or under canopy (transmitted) PPFD measurements in the same environments. Quantum sensors are also used to measure PPFD in aquatic environments, including salt water aquariums where corals are grown.

Ideal for Measurements in Air and Underwater

Apogee quantum sensors are calibrated to make absolute PPFD measurements in air. The waterproof sensors can be used to make absolute PPFD measurements underwater by applying an immersion effect correction factor; the MQ-210X, MQ-510, and the MQ-610 models already apply the correction factor. For details on making underwater measurements, please refer to Underwater PAR Measurements.

Calibration

To ensure accuracy each sensor is carefully calibrated in controlled conditions and traceable to NIST reference standards. The Original sensors are pre-calibrated for either sunlight or electric light sources.

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.

Accurate, Stable Measurements

Sensors are cosine-corrected to maintain their accuracy when radiation comes from low zenith angles. The sensors measure PPFD with a cosine response accurate within ± 5 % at 75° zenith angle. Long-term non-stability determined from multiple replicate quantum sensors in accelerated aging test and field conditions is less than 2 % per year.

Line Quantum Sensor Options

Line quantum sensors (multiple detectors mounted along the length of a rugged anodized aluminum bar) provide spatially averaged PPFD measurements along the length of the bar. All sensors in the line are electrically connected, resulting in a single voltage output that is directly proportional to average PPFD.

Line Quantum X Options:
SQ-301X-SS
MQ-301X-SS

Output Options

Handheld Meter Options:
MQ-100X (Replaced by DLI-400)
MQ-200X
MQ-210X (underwater)

Pigtail Analog Outputs:
0 to 250 mV
0 to 2.5 V
0 to 5 V
4 to 20 mA

Digital Outputs:
Modbus (pigtail)
SDI-12 (pigtail)
USB

µCache Packages:
PQ-100X Package: SQ-100X model (30 cm cable) with Apogee's µCache Bluetooth Micro Logger
PQ-110X Package: SQ-100X-SS2 model (2 m cable) with Apogee's µCache Bluetooth Micro Logger

High Quality Cable

Pigtail-lead sensors feature an IP68, marine-grade stainless-steel cable connector 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.

Specifications
Learn More

Videos
Learn More

Case Studies
Learn More

Support Info
Learn More

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PQ-110X Package: microCache and Original X Quantum with 2 m cable

PQ-110X Package: microCache and Original X Quantum with 2 m cable

$569.00

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