In Industrial Automation applications, every hydraulic or pneumatic cylinder or actuator requires a Reed Sensor or a Magnet Sensor for end position sensing. Unlike inductive sensors or Hall-effect sensors, Reed Sensors use no power and have a good isolation. They have high operating speeds, work with a wide range of voltages of programmable logic controllers (PLCs) and micro-controllers. Special Ferro-magnetic metal detection Sensors can also detect any ferrous parts and do not require an external magnet for actuation. We have suggested recommended products for use in each automation application, but this does not mean that the other products in the same product category will be unsuitable. We have also classified individual applications into types and these guidelines will help select the right magnetic sensitivity and type of magnet to use from our range of products.