To measure vertical angle only

To measure inclined angle only

To measure horizontal angle only

To measure horizontal vertical angles

Auto level

Dumpy level

Transit theodolite

Non-Transit theodolite

Double sighting

Least count

Swing

Contouring

Reiteration method

Recipetation method

Radial method

Off set method

Left deflection angle

Right deflection angle

Vertical deflection angle

Horizontal deflection angle