Apogee Instruments SQ-500 Full-spectrum Quantum Sensor

Apogee Instruments SQ-500 Full-spectrum Quantum Sensor with cable connector.

SQ-500 Full-spectrum Quantum Sensor greenhouse application. (Shown with AL-100 leveling plate accessory)

SQ-500 Full-spectrum Quantum Sensor accurately measures all light sources including LEDs.

SQ-500-SS: Full-Spectrum Quantum Sensor

$392.00

The SQ-500 is a self-powered, analog full-spectrum quantum sensor with a 0 to 40 mV output. The sensor incorporates an enhanced silicon photodiode and custom optical filters with a rugged, self-cleaning sensor housing design, anodized aluminum body with acrylic diffuser, and an inline cable connector placed 30 cm from the sensor head for either standard use as a long-cable pigtail sensor, or for use with our microCache Bluetooth Micro Logger by unscrewing the connector, discarding the long section of cable and then screwing the sensor to the mating connector on the microCache. Typical applications include PPFD measurement 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 PAR/PPFD in aquatic environments, including salt water aquariums where corals are grown. Sensor includes IP68 marine-grade stainless-steel cable connector 30 cm from head to simplify sensor removal and replacement for maintenance and recalibration.

FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS

• Product Manual

• Specification Sheet

• Technical Drawing

MORE INFORMATION ON APOGEE FULL-SPECTRUM QUANTUM SENSORS >> click here

How is the SQ-500 different from previous Apogee quantum sensors?

The SQ-500 is a full spectrum quantum sensor with a spectral range of 389 to 692 nm ± 5 nm, which can be seen in the graph below. This improved spectral response increases the accuracy of LED measurements.
SQ-500 & SQ-100 Spectral Response

Where is the SQ-500 used?

The SQ-500 is used to measure incoming PPFD measurements in outdoor environments, greenhouses, growth chambers, and aquariums.

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Where to Buy

FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS

• Product Manual

• Specification Sheet

• Technical Drawing

MORE INFORMATION ON APOGEE FULL-SPECTRUM QUANTUM SENSORS >> click here

Where is the SQ-500 used?

The SQ-500 is used to measure incoming PPFD measurements in outdoor environments, greenhouses, growth chambers, and aquariums.

Current Stock:

Power Supply Self-powered Output (Sensitivity) 0.01 mV per µmol mˉ² sˉ¹ Calibration Factor (Reciprocal of Sensitivty) 100 µmol mˉ² sˉ¹ per mV Calibration Uncertainty ± 5 % Calibrated Output Range 0 to 40 mV Measurement Range 0 to 4000 µmol mˉ² sˉ¹ Measurement Repeatability Less than 0.5 % Long-term Drift Less than 2 % per year Non-linearity Less than 1 % (up to 4000 µmol mˉ² sˉ¹) Response Time Less than 1 ms Field of View 180˚ Spectral Range 389 to 692 nm ± 5 nm (wavelegths where response is greater than 50 % of maximum) Spectral Selectivity Less than 10 % from 412 to 682 nm ± 5 nm Directional (Cosine) Response ± 5 % at 75˚ zenith angle Azimuth Error Less than 0.5 % Tilt Error Less than 0.5 % Temperature Response -0.11 ± 0.04 % per C Uncertainty in Daily Total Less than 5 % Detector Blue-enhanced silicon photodiode Housing Anodized aluminum body with acrylic diffuser IP Rating IP68 Operating Environment -40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m Dimensions 24 mm diameter, 37 mm height Mass 100 g (with 5 m of lead wire) Cable 5 m of shielded, twisted-pair wire with TPR jacket (high water resistance, high UV stability, flexibility in cold conditions) Warranty 4 years against defects in materials and workmanship Manufactured Made in the USA