Model: SM206 Precision instrument for solar radiation measurement,solar research,physical and optical experiments,meteorology,and agriculture,etc Used also to measure glass light intensity to verify glass properties Displays in W/m2 and Btu selectable Data hold and peak hold Overload and low battery indication Specification: Measuring range 0.1~399.9,1~3999W/m2 ,0.1~399.9,1~3999 Btu /(f2t-h) Resolution 0.1W/m,0.1 Btu /(ft-h) Accuracy +/-10W/m2/+/-3Btu/( f2t-h) or +/-5% of reading (25C) Temperature error +/-0.38W/m2/C, +/-0.12Btu/(f2t-h)/C Response time 0.25sec Dimension 60*132*38mm Battery 9V*1 6F22(Not Included) Packet Content: 1 Piece Solar power meter 1 piece Manual
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