Material:
- A B Frame brass. Bullseye level body polyamide. D1 D

Version:
- D2 D2 Nickel-plated and high-gloss polished. Sample order: H1 H H H1

Note:
- D D1 Bubble levels are used as a type of zero indicator instrument for checking horizontal inclination in e.g. spirit levels, inclinometers, metrology instruments and machine D4 D4 constructions. These bullseye levels can either be screwed down using the three holes (Form A) or recessed (Form B). - Form A: calibrated to the ground bottom face - Form B: calibrated to the underside of the flange D3 D3 - Sensitivity in angular minutes for 2 mm bubble travel - Clear filling - Black contrast ring - White level base Temperature range: -35 degC up to +55 degC.

Dimensions / Technical Data:
- Form: A.
- Version: with mounting flange.
- D: 20 mm.
- D1: 14 mm.
- D2: 10 mm.
- D3: 17 mm.
- D4: 1,6 mm.
- H: 10 mm.
- H1: 1,8 mm.
- Sensitivity: 30 min.