The POLARIS line is a cost-efficient and an accurate non contact infrared temperature switching device, for the recognition of hot parts.The Polaris temperature heat switch provides 2 transistor outputs and includes 2 yellow LED’s on the back of the sensor indicating the switching position. Focus distances range from 6.7″ (170mm) to 79″ (2000mm) depending on the choice of selected optics. Spot sizes range from 1.3mm to 11mm. Available temperature ranges are from 300°C to 1800°C.