High output, High Sensitivity Passive speed sensors convert mechanical motion to A/C voltage without an external power source. These self-contained magnetic sensors produce a magnetic field which, when in the proximity of ferrous objects in motion, generate a voltage. When a magnetic sensor is mounted in the proximity of a ferrous metal target, such as gear teeth on a rotating shaft, the voltage output frequency is directly proportional to the rotational speed of the target. Typically, lower in maintenance and operating costs than mechanical devices, these sensors have no switches to wear out, no rotating couplings to snap or bulbs to burn out. Magna-Tran® speed sensors are available in a variety of housing configurations and terminations. These self-generating sensors are available can supply signal outputs as high as 375 Volts Peak to Peak, depending on the application. These passive sensors are designed to accommodate a broad spectrum of temperatures ranging from -65 F to 450 F and are resistant to oil, dirt and moisture, and pass MIL-STD-202, Method 204, Condition D vibration tests.