Formwork element with signal module for transmitting separating agent content of a separating agent reservoir layer

A formwork element comprising anti-theft protection, the formwork element comprising:

• a base layer forming at least one surface of the formwork element, the base layer being watertight;
• at least one signal module configured to communicate with a base station;
• an at least partially porous, concrete-repellent separating layer disposed above the base layer, the separating layer comprising a smooth surface configured to face towards hardening concrete, the separating layer comprising pores formed such that the pores take up a separating agent emerging on the smooth surface, thereby allowing simple and clean demolding;
• and
• a separating agent reservoir layer disposed between the base layer and the separating layer, the separating agent being stored in the separating agent reservoir layer and delivered to the separating layer, the separating agent reservoir layer being formed such that, after some demolding events, more separating agent can continue to diffuse from the separating agent reservoir layer into the separating layer to replace the separating agent that was consumed, the signal module comprising a sensor input connected to a capacitive sensor that measures a content of the separating agent within the separating agent reservoir layer, thereby enabling detection of a filling level of the separating agent within the separating agent reservoir layer and reading out of the filling level of the separating agent within the separating agent reservoir layer via the signal module so that, in response to the separating agent content becoming too low, the formwork element is re-impregnated to maintain separating properties of the separating layer.