New SR25 pyranometers with sapphire outer dome

At Meteorological Technology World Expo 2016

SR25 versus a non-heated pyranometer
SR25 (on the left side of the photo) vs a non-heated pyranometer without sapphire dome

Online  —  At this year’sMeteorological Technology World Expo, Hukseflux will present new solar radiation sensors, including the SR25 pyranometer.

The SR25 takes solar radiation measurement to the next level! Using a sapphire outer dome, it has negligible zero offsets.

The SR25 is heated in order to suppress dew and frost deposition, maintaining its high measurement accuracy.

When heating the SR25, the data availability and accuracy are higher than when ventilating traditional pyranometers.

In addition, the SR25 needs very low power; it only consumes 1.5 W compared to the usual 10 W for ventilation.

The photo shows the clear difference between a SR25 (on the left side of the photo) versus a non-heated pyranometer without sapphire dome.

The SR25 is available with analogue output and (as SR25-D2) with 4-20 mA and digital output (Modbus RTU over RS-485).

SR25 benefits for meteorological networks:

• highest data availability and measurement accuracy
• no ventilator needed
• ISO 9060 secondary standard, individually tested
• industry standard outputs: easy data acquisition, easy read-out and error-free instrument exchange

To get more information on the SR25, contact Hukseflux or go to

Hukseflux is a leading manufacturer, both in technology and market share, of sensors for solar and longwave radiation measurement.

Hukseflux Thermal Sensors B.V.
Delftechpark 31
2628 XJ Delft
The Netherlands

Tel: +31 15 214 26 69
Fax: +31 15 257 49 49

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