Kistler Instruments is launching the Type 4520A contactless, low-maintenance torque sensor as the latest addition to its range of cost-effective sensors for manufacturing, production and quality assurance applications. The Type 4520A torque sensor costs around the same as slip-ring types, typically less than 1500. However, using non-contact signal transmission eliminates wear, making the new sensor exceptionally robust and maintenance-free, even in continuous use.