Safety light curtains also known as light grids, light barriers, perimeter barriers are electro sensitive devices using one or more light beams, emitted by an Emitter and received by a Receiver, to create an intangible controlled area.
Fundamental characteristics are Safety type: (Type 2 or Type 4), Resolution (14 mm- Finger protection, 30-40 mm Hand protection, 40mm above body protection or perimeter guarding), protected height (from 150 mm to 1800 mm) and protected range (0.5 m to 80 metres).