A kind of clinometer consisting of a sighting tube, spirit level, and graduated scale.
More example sentences
- The equipment used for monitoring includes Abney levels, ranging roles, tape measure and datasheets.
- Participants will get hands on experience working with laser levels, hand levels, Abney levels and Clinometers.
- The equipment used consists of hand held Abney levels, tape measures and ranging poles.
late 19th century: named after Sir William Abney (1844–1920), English scientist.