Adjustable Auto Level Head Adjustable Auto Level Bicomponent Head SE0 (28-38mm) Adjustable Auto Level Bicomponent Head SE1 (37.5-50mm) Adjustable Auto Level Bicomponent Head SE2 (50-75mm) Adjustable Auto Level Bicomponent Head SE3 (75-120mm) Adjustable Auto Level Bicomponent Head SE4 (120-170mm) Adjustable Auto Level Bicomponent Head SE5 (170-215mm) Adjustable Auto Level Bicomponent Head SE6 (140-230mm) Adjustable Auto Level Bicomponent Head SE7 (185-275mm) Adjustable Auto Level Bicomponent Head SE8 (235-325mm) Adjustable Auto Level Bicomponent Head SE9 (205-345mm) Adjustable Auto Level Bicomponent Head SE10 (250-385mm) Adjustable Auto Level Bicomponent Head SE11 (300-400mm) Adjustable Auto Level Bicomponent Head SE12 (270-455mm) Adjustable Auto Level Bicomponent Head SE13 (315-500mm) Adjustable Auto Level Bicomponent Head SE14 (365-550mm)