Filter-Adapter for Smartphone

A practical aid for recording defects in the building:
With the "room sheet", the condition of the doors, windows, walls, ceilings, floors, electrical and radiator installations, bathroom and kitchen fittings can be systematically recorded in writing for each room.

The Markal SL-130 is ideal for marking paint and glass surfaces. The bright colour is highly visible and can be easily wiped off with water without leaving any traces.

Stable crack width chart made of plastic in graduations from 0.05 mm to 1.2 mm in 0.05 steps, as well as 1.3 / 1.4 / 1.6 / 1.8 / 2.0 / 2.5 / 3.0 and 3.5 mm.
On the reverse side, coloured fields indicate the temperature in 1° C steps (from 8° to 32° C.).