AV Stumpfl Inline-Motor Strato 1:1 is a complete stationary projection screen with a 400 x 400 cm square projection format and a 16 x 16 cm aluminium casing. It includes the frame, stand and STRATO projection surface, made from coated non-woven glass fibre with a matt-white finish and gain 1.0. The screen uses a fast, silent 230 V tube motor with an electromagnetic disk brake and overtemperature protection.