Calculator, Statistical Functions, Battery Operated, CAS, Display: Monochrome, :
From Amazon
Casio FX-82MS-2 Scientific Calculator, Battery Operated, Grey
Conrad Electronic
Casio FX-82MS-2 CAS calculator Black Display (digits): 12 battery-powered (W x H x D) 77 x 14 x 162 mm
OnBuy
Calculator Casio FX-82 Black