Microtops II Sunphotometer

Features

The Microtops II sunphotometer is a 5 channel hand-held instrument for measuring the atmospheric column easily, accurately and dependably.

The Facility's Microtops II sunphotometers have been configured with five filters for the determination of aerosol optical thickness (AOT), including filters at 936nm and 1020nm for the measurement of total water vapor.

Microtops II features an accuracy comparable to much larger and more expensive instruments.

FSF can now offer four Microtops II sun photometers for loan or hire. Please contact the FSF Equipment Manager for more information.

Specification

Filters
440±1.5 nm, 10 nm FWHM
675±1.5 nm, 10 nm FWHM
870±1.5 nm, 10 nm FWHM
936±1.5 nm, 10 nm FWHM
1020±1.5 nm, 10 nm FWHM
Resolution
0.01W/m²
Dynamic Range
>300,000
Field of View
2.5 degrees
Precision
1-2%
Nonlinearity
max 0.002% FS
Computer interface
RS-232C
Power source
4 x AA Alkaline batteries
Weight
21 oz (600 grams)
Size
10 x 20 x 4.3cm
Operating Environment
0 to 50°C, no precipitation

Example Applications

Resources