Which sun/twilight sensor is required for this RolloTron?

The matching sensor is available in different lengths:
Length 0.75m Art. No. 7000 00 88
Length 1,50m Art. No. 7000 00 89
Length 3,00m Art. No. 7000 00 90 Length
5,00m
Art.
No. 7000 00 91 Length
10,00
m Art.
No. 7000 00 92