Cover in key color, F50, LS series, gris 31 for clipping onto F 50 modules of the LS series Item no.: LS 507.. TSM, LS 509.. TSM, LS 509.. TSEM, LS 5178 TSM, LS 5178 TSEM, LS 507.. RF TSM, LS 52.. TSM, FM LS 50.. M Dimensions: 33 x 70.5 mm