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Keeping your world up and running.®
© 2024 Fluke Corporation
Specifications subject to change without notice.

You can depend on Fluke tools to keep your world up and running.

Fluke® tools perform like champions in the most challenging utility-scale solar  environments. You can depend on Fluke tools to keep your world up and running.

Solar Irradiance Meter

Fluke IRR1-SOL

Solar Irradiance Meter

The perfect companion for solar technicians.

Whether you’re surveying, installing, executing maintenance on, or checking the performance of solar panels or photovoltaic systems, the Fluke IRR1-SOL Irradiance Meter packs everything you need into one convenient tool.

  • Instantly determine the watt per square meter solar irradiation

  • All 4 critical solar system measurements: solar irradiance, temperature, cardinal direction, and tilt/inclination

  • High contrast LCD screen with large numbers for easy readability in direct sunlight

Download Datasheet
Download Datasheet
Irradiance
Measuring Range
0 to 1400 W/m2
Resolution
1 W/m2
Measuring Accuracy
± (5% + 5 Digit)
Temperature Measurement¹
Measuring Range (°C)
-30°C to 100°C
Resolution
0.1°C
Measuring Accuracy
±1°C @ -10°C to 75°C
±2°C @ -30°C to -10°C
±2°C @ 75°C to 100°C
Inclination Angle
Measuring Range
-90° to +90°
Resolution
0.1°
Measuring Accuracy
±1.5° @ -50° to +50°
±2.5° @ -85° to -50° and +50° to +85°
±3.5° @ -90° to -85° and +85° to +90°
Compass² ³
Measuring Range
0° to 360°
Resolution
1°
Measuring Accuracy
±7°
Protection
IP Protection
IP40
General Specifications
Battery Life (typical)
50 hours (≤9000 readings)
Weight
231 g
¹ Temperature measurement response time: ~30 seconds
² Measurements valid for device inclination between -20° and +20° to horizontal. Measurements taken outside that range appear as “---”
³ Result is referred to magnetic North
Solar Irradiance Meter

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