®

PAR Sensor

Measure photosynthetically active radiation

The model QSO-S PAR Photon Flux sensor measures the Photosynthetic Photon Flux (PPF) in μmol m-2 s-1 from a field of view of 180 degrees. The diffusion disk is composed of characterized pigments for good spectral response. The sensor is designed for continuous outdoor use and is completely waterproof and submersible.

Accuracy

Accurate measurement depends on cleanliness of the lens and installation at horizontal (180°). The sensor head has a domed diffusion disk to reduce the need for frequent cleaning. A leveling plate is included for accurate installation.

Request a quote



California requires the following notice

⚠️ WARNING: This product may contain chemicals including ethylene glycol, lead, nickel, styrene and cadmium, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

PAR Sensor

Specifications

Spectral range

400 – 700 nm

Accuracy

± 5%

Resolution

2 μmol m-2 s-1

Field of view

Hemispherical, 180°

Measurement range

Linear range: 0-1000 mV
(0-5000 μmol m-2s-1)
Full sunlight: 400 mV
(2000 μmol m-2s-1)

Calibrations and conversions

Sensors are calibrated for outside use
5.0 µmol m-2 s-1 per mV

Operating temperature

-40 to +60 °C

Power

None, self powered

Cable length

5 m

Cable connector types

3.5 mm “stereo” plug

Sensor dimensions

2.4 cm x 2.75 cm (0.95 in x 1.1 in)

Data logger compatibility (not exclusive)

METER Em50/50G, EM60 series, ZL6 series, ZSC, ProCheck

Warranty

One year, parts and labor

California requires the following notice:

⚠️ WARNING: This product may contain chemicals including ethylene glycol, lead, nickel, styrene and cadmium, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

Support

Have a question or problem? Our support team can help.

We manufacture, test, calibrate, and repair every instrument in house. Our scientists and technicians use the instruments every day in our product testing lab. No matter what your question is, we have someone who can help you answer it.

Email: support.environment@metergroup.com

Phone US: +1 509-332-5600
Phone Europe: +49 89 12 66 52 0

Read Knowledge Base Articles