The ATM90 with SSI data interface completes the ATM60 product family with through hollow shaft variants. The ATM90 operates reliably even under harsh ambient conditions. Its rugged mechanical design ensures maximum reliability and a long service life. Magnetic singleturn scanning allows a maximum resolution of up to 13 bits within one revolution. Output and detection of the number of revolutions, max. 13 bits, is determined via a mechanical drive with a gearbox that is virtually wear-free. This means that the ATM90 can be operated without a battery. A shallow installation depth of 60 mm combined with high shock and vibration resistance make the ATM90 SSI the perfect match for applications with high mechanical stress and distinct climate fluctuations.