Fluke IRR2-BT Solar Site Survey Irradiance Meter
The Fluke IRR2-BT Solar Site Survey Irradiance Meter helps solar professionals complete site surveys, installation checks and maintenance tasks with confidence. It combines irradiance, temperature and inclination measurements in one compact instrument. As a result, users can gather key data quickly while reducing the need for multiple tools.
Built for field use, the Fluke IRR2-BT Irradiance Meter features a rugged design and an easy-to-read LCD display that remains visible in bright sunlight. The integrated temperature sensor delivers instant readings, while the included compass helps verify array direction. This allows technicians to record critical site information efficiently and accurately.
Fast Solar Site Assessments
During solar installation and commissioning work, accurate irradiance data is essential. The Fluke IRR2-BT Solar Site Survey Irradiance Meter measures irradiance up to 1400 W/m² and complies with IEC 62446-1 requirements for solar testing. In addition, the unit measures panel tilt from -90° to +90°, helping users confirm the correct mounting angle.
Wireless Bluetooth connectivity expands functionality even further. When paired with compatible Fluke solar testing equipment, the meter supports streamlined testing workflows and instant data sharing. Therefore, technicians can improve productivity while maintaining reliable measurement records.
Designed for Daily Field Use
Long battery life makes the instrument suitable for extended site visits. Four AA alkaline batteries provide up to 50 hours of operation or more than 9000 readings, while the automatic power-off function helps conserve battery life between measurements. Consequently, the meter remains ready for demanding work schedules.
Two set options are available to suit different testing requirements. The Fluke IRR2-BT Irradiance Meter can be used as a standalone survey instrument or as part of a compatible solar PV testing setup. With accurate measurements, wireless capability and robust construction, it provides a practical solution for photovoltaic installation and maintenance professionals.
Key Features
- Designed for solar panel installation and maintenance work
- Combines irradiance, temperature and inclination measurements
- Integrated compass for array orientation checks
- Bluetooth wireless communication capability
- Compatible with Fluke SMFT-1000 Solar PV Multifunction Tester
- Large LCD display suitable for outdoor use
- Compact and rugged construction for field applications
- Stores measurement data in onboard memory
- Real-time clock functionality included
- Mounting bracket supplied for panel-level measurements
- Battery-powered operation for portable use
- Automatic power-saving function after inactivity
- Supports photovoltaic commissioning workflows
- Suitable for site surveys and performance verification
Technical Specifications
| Irradiance measurement range | 50 to 1400 W/m² |
| Irradiance resolution | 1 W/m² |
| Irradiance accuracy | ± (5% + 5 digits) |
| Temperature measurement range | -30°C to 100°C (-22°F to 212°F) |
| Temperature resolution | 0.1°C / 0.2°F |
| Temperature accuracy | ±1°C from -10°C to 75°C, ±2°C outside this range |
| Temperature response time | Approximately 30 seconds |
| Inclination measurement range | -90° to +90° |
| Inclination resolution | 0.1° |
| Inclination accuracy | ±1.5° to ±3.5° depending on angle |
| Compass measurement range | 0° to 360° |
| Compass resolution | 1° |
| Compass accuracy | ±7° |
| IEC compliance | IEC 62446-1 |
| Wireless frequency range | 2.402 GHz to 2.480 GHz |
| Wireless output power | 8 dBm |
| Memory type | EEPROM |
| Memory capacity | 64 kB / 6400 records |
| Recording time | 17 hours |
| Real-time clock | Yes |
| Communication | Bluetooth module for compatible Fluke instruments |
| Operating temperature | -30°C to 100°C |
| Storage temperature | -30°C to 60°C |
| Operating altitude | 0 m to 2000 m |
| Ingress protection | IP40 |
| Power supply | 4 x AA alkaline batteries |
| Battery life | Up to 50 hours or more than 9000 readings |
| Auto power off | 30 minutes |
| Dimensions | 150 x 80 x 35 mm |
| Weight | 231 g |
| Manufacturer part code | IRR2-BT |
| Warranty | Not specified |
Comparison Table
| Measurement Function | Range | Resolution | Accuracy |
| Irradiance | 50 to 1400 W/m² | 1 W/m² | ± (5% + 5 digits) |
| Temperature | -30°C to 100°C | 0.1°C | ±1°C to ±2°C depending on range |
| Inclination Angle | -90° to +90° | 0.1° | ±1.5° to ±3.5° |
| Compass | 0° to 360° | 1° | ±7° |
Document Downloads
What’s Included
- Fluke IRR2-BT Solar Site Survey Irradiance Meter
- Mounting bracket
- 4 x AA alkaline batteries
- User documentation
