Flap size up to approx

• check 0.4 m²(4)
• check 0.8 m²(1)
• check 1 m²(3)
• check 1,2 m²(1)
• check 1.5 m²(2)
• check 2 m²(2)
• check 3,2 m²(3)
• check 8 m²(1)

Control:

• check Continuously (0/2...10V)(1)
• check Open / Closed(1)