Tenmars TM-206 Solar Power Meter BTU W/M2 Radiation Energy Cell Tester (Made in Taiwan)

Features
-High Precision
-Measure light sources including all visible light
-Overload: LCD display "OL"
-Select either W/m2, 0.1 BTU/(ft2*h) units
-Stable for long use
-Data Hold / MAX / MIN / Auto-Range functions
-Simple to use General data
-Convenient, no need to adjust, data display clearly
Specifications
-Display: 3 - 1/2 digits LCD with maximum reading 1999
-Range: 1999 W/m2, 634 BTU/(ft2*h)
-Resolution: 0.1 W/m2, 0.1 BTU/(ft2*h)
-Accuracy: o Typically within ¡Ó 10W/m2 [¡Ó3 BTU/ (ft2xh)] or ¡Ó5% whichever is greater in sunlight o Additional temperature included error ¡Ó 0.38 W/m2 / ?C [¡Ó0.12 BTU/ (ft2xh)] / ?C] from 25 ?C
-Overload: LCD display "OL"
-Sampling Time: approx. 0.25 seconds
-Battery: 1 x 9V Battery (included)
-Battery Life: approx. 100 hours
-Operating Temperature: 5 ~ 40 ¢XC (41 ~ 104 ¢XF)
-Operating Humidity: < 80% R.H.
-Storage Temperature: -10 ~ 60 ¢XC (14 ~ 140 ¢XF)
-Storage Humidity: < 70% R.H.
-Dimension: approx. 132 (L) x 60 (W) x 38 (H) mm (5.19 x 2.36 x 1.49 inch)
-Weight: approx. 150 g (5.3 oz)
One Set Included
-1 x Solar Power Meter
-1 x 9V battery
-1 x Carrying Bag
-1 x Instruction Manual
-Standard Factory Package