MS-21 Series Pyrgeometer
Research-grade pyrgeometer family for high-accuracy longwave atmospheric and net radiation measurement, combining WISG-traceable calibration, low window-heating error and excellent temperature stability for climate, meteorological and scientific monitoring.
Typical Applications
- Climate research
- Meteorological monitoring
- Atmospheric radiation measurement
- Longwave downwelling radiation monitoring
- Surface energy-balance studies
- Climate-change monitoring
- BSRN-type radiation networks
- Reference meteorological stations
- Scientific atmospheric research
- Long-term environmental monitoring
Product Enquiry
MS-21 Series Pyrgeometer
Research-grade pyrgeometer family for high-accuracy longwave atmospheric and net radiation measurement, combining WISG-traceable calibration, low window-heating error and excellent temperature stability for climate, meteorological and scientific monitoring.
Typical Applications
- Climate research
- Meteorological monitoring
- Atmospheric radiation measurement
- Longwave downwelling radiation monitoring
- Surface energy-balance studies
- Climate-change monitoring
- BSRN-type radiation networks
- Reference meteorological stations
- Scientific atmospheric research
- Long-term environmental monitoring
The MS-21 Series Pyrgeometer is a research-grade longwave infrared radiation measurement system designed for climate research, meteorological networks and atmospheric energy-balance studies. Covering a broad 4.5–42 μm spectral range, the series measures both longwave downwelling radiation and longwave net radiation with excellent temperature stability, ultra-low window-heating error and WISG-traceable calibration. The family includes the smart digital MS-21SH Pyrgeometer, featuring integrated dome heating and internal diagnostics, and the precision analogue MS-21 Pyrgeometer, providing a proven low-noise measurement platform for professional data-acquisition systems.
Key Features
- Research-grade longwave radiation measurement
- 4.5–42 μm spectral response
- Longwave downwelling radiation measurement
- Longwave net radiation measurement
- -250 to +250 W/m² net radiation range
- Less than 18 second 95% response
- Less than 4 W/m² window-heating offset
- Less than 1 W/m² zero offset B
- Less than 1% temperature response
- 180° field of view
- PT100 detector temperature sensing
- WISG-traceable calibration
- -40°C to +80°C operating temperature
- Smart digital and precision analogue options
- 5-year warranty
The MS-21 Series can measure longwave radiation during daylight without requiring a sun tracker, shading disk or shadow ring because its specially coated silicon dome suppresses unwanted shortwave solar radiation below the longwave measurement band.
Product Models
MS-21SH
- MS-21SH Research-Grade Smart Pyrgeometer
- Measures longwave downwelling and net radiation
- 4.5 to 42 μm wavelength measurement range
- Net radiation measurement range -250 to +250 W/m²
- Less than 18 second 95% response time
- Window heating offset less than 4 W/m²
- Zero offset B less than 1 W/m²
- Temperature response less than 1% from -20°C to +50°C
- Modbus RTU and SDI-12 digital signal outputs
- Integrated low-power solid-state dome heater
- Internal humidity, temperature and tilt diagnostics
- PT100 Class A detector temperature sensor
- 180° field of view
- Operating temperature -40°C to +80°C with IP67 protection
- WISG-traceable calibration and 5-year warranty
MS-21
- MS-21 Research-Grade Analogue Pyrgeometer
- Measures longwave downwelling and net radiation
- 4.5 to 42 μm wavelength measurement range
- Net radiation measurement range -250 to +250 W/m²
- Sensitivity 10 to 20 μV/W/m²
- Less than 18 second 95% response time
- Window heating offset less than 4 W/m²
- Zero offset B less than 1 W/m²
- Temperature response less than 1% from -20°C to +50°C
- Non-linearity less than 1%
- Precision analogue thermopile signal output
- PT100 4-wire detector temperature sensor
- 180° field of view
- Operating temperature -40°C to +80°C
- WISG-traceable calibration and 5-year warranty
The MS-21 Series Pyrgeometer is a research-grade longwave infrared radiation measurement system designed for climate research, meteorological networks and atmospheric energy-balance studies. Covering a broad 4.5–42 μm spectral range, the series measures both longwave downwelling radiation and longwave net radiation with excellent temperature stability, ultra-low window-heating error and WISG-traceable calibration. The family includes the smart digital MS-21SH Pyrgeometer, featuring integrated dome heating and internal diagnostics, and the precision analogue MS-21 Pyrgeometer, providing a proven low-noise measurement platform for professional data-acquisition systems.
Key Features
- Research-grade longwave radiation measurement
- 4.5–42 μm spectral response
- Longwave downwelling radiation measurement
- Longwave net radiation measurement
- -250 to +250 W/m² net radiation range
- Less than 18 second 95% response
- Less than 4 W/m² window-heating offset
- Less than 1 W/m² zero offset B
- Less than 1% temperature response
- 180° field of view
- PT100 detector temperature sensing
- WISG-traceable calibration
- -40°C to +80°C operating temperature
- Smart digital and precision analogue options
- 5-year warranty
The MS-21 Series can measure longwave radiation during daylight without requiring a sun tracker, shading disk or shadow ring because its specially coated silicon dome suppresses unwanted shortwave solar radiation below the longwave measurement band.
Additional information
| Models | MS-21SH, MS-21 |
|---|