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How it works
WISER I
Spectroradiometers
MS-711N + MS-712
Designed for accuracy, and built for outdoor reliability, the all-weather WISER I combines the MS-711N and MS-712 spectroradiometers for the most accurate outdoor solar spectral data.
WISER I
The WISER I Spectroradiometer configuration, combining the MS-711N, measuring the spectral range from 300nm to 1100nm (UV-Visible-NIR), and the MS-712 for the near-infrared (NIR) range between 900nm and 1700nm, is designed to provide the most accurate outdoor solar spectral data.
With temperature-controlled sensor units and NIST traceable calibration, the WISER I delivers improved stability and long-term reliability, suitable for all-weather conditions and continuous outdoor use, with an operational temperature range of -10 to 50°C.
Often installed in fixed locations for meteorological, plant science, photovoltaic research, and material analysis applications, the WISER I is also suitable for use as a travelling reference, with separate power supplies for both sensors, a calibration uncertainty budget, and software, including ‘Nami’, for sensor management, data analysis, and visualisation.
Key Features:
- ll-weather build & temperature controlled sensor unit for continuous outdoor use
- Excellent stability & long-term reliability
- Broad measurement range, from 300nm to 1700nm
- Operating temperature range -10 to 50°C
- NIST Traceable calibration
- Compatible with STR-32G Sun Tracker for measuring direct spectral irradiance
Accessories
Frequently Paired Together
| Measurement Range | 0 to 150 W/m² |
|---|---|
| Temperature response | < ±1% (-20°C to 50°C) |
| Spectral Range | 315 to 400 nm |
| Spectral Error | < 20% |
| Directional Response (0° to 70°) | < ±5% |
| Response time 95% | < 0.2 Sec |
| Non-linearity | < 1 % |
| Operating temperature range | -40 to 80°C |
| Output | Modbus 485 RTU, 4-20 mA, or 0-1 V (100 Ω) |
| Power Consumption | < 0.2 W |
| Size and Weight | ⌀96 x 101H , 0.4 kg |