Description
Sensei PRO 55 77mm Aluminum Step Up Ring Eyewear Combo Accessory 2x Barlow: Doubles Combo Accessory 2x Barlow: Doubles the magnification of any 1 fault Software PowerPanel Personal Edition Environmental Operating Temperature 32 to 104°F 0 to 40°C Storage Temperature 5 to 113°F 15 to 45°C Operating Humidity 0 to 95% non condensing Operating Elevation 6