The MS-21SH Pyrgeometer is a research-grade longwave radiation sensor designed for precise atmospheric and surface radiation measurements. Engineered with an advanced thermal design, it minimizes window heating effects and delivers exceptional measurement stability across varying environmental conditions. Covering a 4.5–42 μm spectral range, it accurately measures downward and net longwave radiation without requiring a sun tracker or shading device.
Specifications
| Wavelength Range | 4.5 to 42μm |
|---|---|
| Response time | < 18 Sec (@95%) |
| Window heating offset | < 4 W/m² |
| Zero offset B | < 1 W/m² |
| Temperature response | < 1 % (-20 to 50°) |
| Signal Output | Modbus 485 RTU / SDI-12 |
| Sensor Diagnostic | Relative Humidity ± 2% Temp. ± 0.5ºC / Tilt Angle ± 1° |
| Operating temperature range | -40 to 80 °C |
| Net radiation measurement range | -250 to 250 W/m² |
| Supply voltage | 8 to 30 VDC |
| Power Consumption | < 1.4 W |
| Field of view | 180° |
| Detector temperature sensor | Pt-100 Class A |
| Standard Cable Length | 10m (Optional lengths 20m, 30m, 50m) |
| Ingress protection | IP67 |
Environmental Monitoring
Hydrological Studies
Solar Assessment
Climatological Monitoring
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