Tenmars TM-206
Solar Power Meter

     Model  

TM-206 

     Display 

3½ digits, 2000 readings 

     Range 

2000 W/m2,  634BTU / (ft2xh) 

     Accuracy 

Typically within +/- 10W/m2 [+/-3 BTU/ (ft2xh)] or  

+/- 5% whichever is greater in sunlight; 

Additional temperature included error +/- 0.38 W/m2 / º C [+/-0.12 BTU/ (ft2xh)] / º C] from 25 º C  

     Angular accuracy 

Cosine corrected <5% for angles <60º  

     Drift 

< +/- 2% per year 

     Over-input 

Display "OL"  

     Sampling time 

0.25 second 

Operating Temp. and    Humidity  

0 º C   ~ 50 º C below 80% RH