Features:
1.Sunlight measurement up to 1999w/m2 or 634BTU/(ft2*h)
2.High accuracy and rapid response
3.Data Hold funtction to hold measurement values
4.Unit and sign display for easy reading
5.Measuring unit selection among w/m2 and BTU/(ft2*h)
6.Manual scale selection
7.Direct reading with no adjustments needed
8.Maximum and minimum values
9.Low battery indication