The Middleton CN1-R Net Pyrradiometer measures the net total radiation flux (solar, terrestrial, and atmospheric) downward and upward through a horizontal surface. It is suitable for solar energy studies in agriculture and meteorology.
The Middleton EQ16 Pyrano-Albedometer is a dual head version of the Middleton EQ08 First Class Pyranometer. It is for the measurement of the ratio of upward to downward solar radiation flux density on a plane surface. The EQ16 has a direct microvolt output, and the EQ16-E version has an in-built signal amplifier.
The Middleton SK08 is an affordable pyranometer for the measurement of global solar irradiance on a plane surface. It meets the international accepted specifications for a good quality pyranometer. The SK08 incorporates a passive thermoelectric sensor. The SK08-E version has an inbuilt signal amplifier.
The Middleton Solar UVR1 series are precision filter radiometers for measuring solar global ultraviolet irradiance. The UVR1-T and UVR1-A are suitable for air pollution monitoring. The UVR1-B is suitable for biological and human erythema (sunburn) monitoring.
The Middleton Solar SP02 Sunphotometer is a simple low-cost instrument for the determination of the spectral optical depth of the atmosphere. It can be configured for total & aerosol optical depth measurement, column ozone measurement, and assessment of water vapour amounts. It consists of four precision spectro-pyrheliometers axially aligned in a sealed enclosure.
Four identical omni-directional sensors under a hemispherical shading canopy. Embedded microcontroller executes a sophisticated contrast-evaluation algorithm to accurately discriminate direct sunshine from diffuse sunlight.