The M140 measures solar irradiance in units of W/m2 or BTU/(ft2*h). It is durable, reliable, and easy to use.
- Super low price, high precision.
- Measurable light sources, including all visible light.
- Overload display OL.
- Select either W/m2 or BTU / (ft2*h) units.
- Stable for long use.
- Power off: Manual on/off by push button, or auto shut off after 15 minutes.
- Solar power evaluations
- Finding the optimal incident angle for solar panels
- Measurement of the sun’s transmission through transparent and opaque materials