For permanently ensuring the surveyed measurements are securely marked until after plastering work
For ensuring heights and finished floor level (FFL) are securely marked until after plastering
For ensuring axes are securely marked until after plastering
The RS20 & RS21 Datum Markers are also available in red without the inscription “Meterriss”. Article no. RS20r oM. and RS21r oM.
Datum Markers RS20 and RS21 after plastering work, the upper edge of the pin acts as the marker
The Datum Markers stay under the plaster as proof.
RS21 Datum Markers are perfect for attaching to round pillars. Before mounting on the pillar, use a carpet knife to cut into the plastic surround on the Datum Markers approximately 4 times at one centimeter intervals. The Datum Markers can then be attached easily to pillars with a small diameter.