LX‑107 Portable Solar Radiometer Ultraviolet Power Meter with Peak Holding Compass Functions Item Type: Radiometer Model: LX-107 Material: ABS Power Supply: 1 x 6F22 9V (Battery Not Included) Purpose: UV Radiation Measurement Scope of Application: physical optics test, window insulation effect test, weather station, agriculture, sunlight radiation intensity Basic Skills Range Accuracy W/M² 2000 W/m² Range: ±10W/m2 or ±5% (whichever is greater) Temperature coefficient: ±0.38 W/m2/℃ (when deviating from 25℃) BTU 634BTU(ft2 x h) Range: ±BTU/(ft2 x h) or ±5% (whichever is greater) Temperature Coefficient: [±0.12 BTU/(ft2xh)]/℃ (when deviating from 25 ℃) Special Functions LX-107 Data Retention √ Maximum Display 1999 Angle Accuracy Cosine correction<5% (angle<60º) Drift <±2% per year Overload Display Display OL Sampling Rate 2.5 times/sec Compass Function √ Sensor UV light diode with filter lens Operating Temperature and Humidity 0℃~50℃ less than 80% RH Storage Temperature -10℃~60℃ less than 70% RH Low Voltage Display √ Automatic Power Off √