PYR Sensor
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PYR Sensor
Easy-To-Use Pyranometer

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Measure total solar radiation

The PYR  total solar radiation sensor (pyranometer) measures the solar radiation flux density (in watts per meter squared) from a field of view of 180 degrees.


Weatherproof for long-term use

The sensor is designed for continuous outdoor use and is completely waterproof and submersible.



Accurate measurement depends on the cleanliness of the lens and installation of the sensor 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.

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Spectral Range     380 - 1120 nm
Accuracy ± 5%
Resolution N/A
Field of view Hemispherical, 180°
Measurement range 0 to 1,750 W m-2 (0 – 350 mV)
Calibrations and conversions Sensors are calibrated for outside use
5.0 W m-2 per mV
Calibrations and conversions -40 to +60 °C
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


PYR Sensor Manual Manual PDF, 1.256MB
PYR Sensor Quick Start Quickstart Guide PDF, 0.552MB


Can PAR be estimated from total shortwave radiation?


It is better to measure PAR and total shortwave radiation (PYR); however, PAR can be estimated from total shortwave radiation by using a physically based model.

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