The miniTwin4 is the world’s smallest light grid with the maximum safety rating (type four). Two light grids (length 120 to 1200 mm), mounted opposite each other, create a protective field in front of machinery. For the first time, an identical pair can be used, thanks to new technology. An internal prism guides the beam, allowing a slender, asymmetrical device shape that integrates well into surroundings. The curve of the aluminum sections creates visual continuity between the pair of devices. Cables can be directed upwards or downwards, ensuring that neither the devices nor the connections can be accidentally transposed (Poka-Yoke principle).