Optical security system to protect a part of an old tree. The security system contains 4 optical sensors with a reflector on a wooden pole. A siren is connected to the sensors with all the necessary electric wires. The sensors and siren are made of paper with a water protective coating. The electric wires are made of white cord.
This work was shown at ‘XXI – into XdXd’, Arte Ventuno, Hasselt.
