Display

3½ digits, 2000 readings

Range

2000 W/m2, 634BTU / (ft2xh)

Resolution

0.1 W/m2, 0.1 BTU/ (ft2xh)

Accuracy

Accuracy:Typically within +/- 10W/m2 [+/-3 BTU/ (ft2xh)] or +/- 5% whichever is greater in sunlight. Temperature included error +/- 0.38 W/m2 / ºC [+/-0.12 BTU/ (ft2xh)] / ºC] deviationfrom 25 ºC.

Angular accuracy

Cosine corrected <5% for angles <60º

Drift

< +/- 2% per year

Over-input

Display "OL"

Sampling time

0.25 second

OperatingTemp. and Humidity

0C~ 50ºC below 80% RH

Power supply:

9V battery x1