The low-range rotary torque sensor RTSC is designed to provide reliable and accurate torque measurements in rotating systems using advanced non-contact transformer technology. This innovative design allows the signal transmission from the rotating shaft to the stationary housing through coils, completely eliminating the need for mechanical contact. This non-contact mechanism not only ensures precise readings but also helps minimize wear and tear typically caused by friction, which significantly improves the sensor's durability and reduces maintenance needs. As a result, the RTSC is practically maintenance-free, offering a cost-effective and long-lasting solution for torque measurement in dynamic applications.