Glas fibre detection is a revolutionary way of measuring exact temperature with help of a glas fibre detector. The reflected signal from the laser that is sent by the glass fibre is temperature sensitive and provides a precise temperature measurement on each point of the detector. With the supplied controller the detector can be devided into 256 zones and alarm criteria can be programmed per zone such as min/max temperature, rate of rise, deviation of an average etc. The system is perfectly suitable for buildings with explosion safe equipment such as chemical factories, refineries and tank terminals. Direct controlling from the fire fighting system is possible. The maximum length of 8 km offers a flexible and affordable detection device.