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The new SPN1 measures Global (Total) and Diffuse radiation and Sunshine Duration – in one instrument!

  • Global (Total) and Diffuse irradiance in W.m-2
  • WMO sunshine threshold: 120 W.m-2 direct beam
  • No routine adjustment or polar alignment
  • No moving parts, shade rings or motorised tracking
  • Works at any latitude

The Sunshine Pyranometer is a patented, meteorological class instrument, with built-in heater, designed for long-term outdoor exposure. It is an affordable alternative to shade-ring pyranometers, pyrheliometers and traditional sunshine recorders.

The SPN1 is exceptionally easy to use; it needs no routine adjustment or polar alignment and works at any latitude

  • Precision ground glass dome
  • Wideband thermopile sensors
  • Near ideal spectral and cosine response
  • Standard output sensitivity

Outputs

The Sunshine Pyranometer provides 2 analogue voltage outputs for global and diffuse radiation, and a digital output for sunshine duration, which can be connected to data loggers, such as the Delta-T DL2e and GP1. Readings can also be obtained directly from the RS232 port.

Heater

An internal heater keeps the dome clear of dew, ice and snow down to -20°C (in still air conditions), ensuring reliable readings in difficult climatic conditions.

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