Whenever a rotary sensor is to be used for a "Harsh Outside" application such as "Mobile Hydraulics","Wind Turbines"or "Offshore Applications" the sensor is expected to be imperviousto the environmental conditions as well as the harsh application requirements. These include wide temperature fluctuations and sealing against water and debris. The PRAS5 family is available with either a stainless steel or aluminium housing which has been designed to allow the sensor to run continuously under these demanding conditions. The sensor incorporates "Hall" sensing technology and is available with a 10mm output shaftor alternatively magnetically coupled via and independent magnet giving a true non contact measuring system. M8 fixings meet the heavy duty installation requirements with a temperature capability from -40ºC to an optional 120ºC. The sensor can be ordered in angular increments of 15º and the rugged design has been tested for 100g/11ms shock and 20g vibration.