Environmental

Quantum PAR Sensor

Measure Photosynthetically Active Radiation

The SQ-521 is a digital sensor with SDI-12 communication protocol. The sensor incorporates a rugged, self-cleaning sensor housing design, anodized aluminum body with acrylic diffuser, and high-quality cable terminating in a 3.5mm stereo jack for easy connection to METER dataloggers. 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.

Specifications
Specteral Range
389 to 692 nm
Accuracy ± 5nm
Directional (cosine)
Response
± 2 % at 45°, ± 5 % at 75° zenith angle
Response Time Less than 1 ms
Long-term Drift Less than 2 % per year
Calibrations and Conversions Sensors are calibrated for outside use
5.0 µmol m-2 s-1 per mV
Power None, self powered
Operating Environment -40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m
Cable Length 5 m
Cable connector Types 3.5 mm "stereo" plug
Sensor Dimensions 30.5 mm diameter, 37 mm height
Data Logger Compatibility (not exclusive) ZL6 & ProCheck
Warranty One year, parts and labour

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Labcell Limited exclusively supply and support METER products in the UK & Ireland.

Non UK/Ireland Customers, please contact METER Environment at:www.metergroup.com/environment/

SQ-521

QSO-S PAR Sensor
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Quotation Request

Email us to request a quotation for the Quantum PAR Sensor