LOCTITE 7020, UV Spot RadiometerCondition:* Powers On, Unable To Test. Sold As-Is.Additional Notes:* Measure Light Guide Degradation* Optimize multi-pole light guide positioning* Determine proper intensity required for curing various materials.* Range: 0-20 W/cm* Resolution: 10 mW/cm* Display: 3.5 mm digital LCD* Display Time: 2.5 to 5 minutes* Spectral Range: 320 to 390 nm (UVA Region)* Power Source: Lithium Battery Stick* Battery Life: 12,500 hours continuous operation (over 100,000 readings)* Overall Dimensions (LxW): 6.42″ x 2.11″ (163 mm x 53.6 mm)Loctite7020