Basic calculator 062 x 102 x 09mm aurora ecocalc ec240 pack 30 free software aurora ck eco p this aurora ecocalc ec240 handheld calculator classpack combines the requirement for a basic school or office calculator with greener manufacturing and reduced carbon footprint the classpack provides the ideal solution for any school or organization looking to implement a greener procurement policy and to reduce their environmental impact p p the eco calc classpack consists of 30 aurora ec240