AV Stumpfl Inline-Motor Strato is a complete stationary projection screen with a 500 × 400 cm projection surface in a 4:3 aspect ratio. The system includes the frame, stand and projection surface. It uses a white RAL9016 powder-coated extruded-aluminium casing and a STRATO coated non-woven glass-fiber surface with gain 1.0. The 230 V inline tube motor provides fast, silent operation with electromagnetic disk brakes and overtemperature protection.