Summit engineering technology offers check star opta, a "crane electronic ltd-uk" make torque transducer. This is an in-line torque transducer with angle measurement option. Key features are dynamic torque measurement of all continuous drive and impulse tools; proven reliable performance for impulse tool measurement; guaranteed no brush bounce; compact design and no size increase for angle option; and plug & play with crane display systems [auto id]. Crane`s checkstar sets the standard for dynamic torque and angle measurement of all continuous drive and impulse tools, with proven reliable performance in thousands of applications worldwide. Checkstar transducers fit in-line between the assembly tool and the fastener, measuring the actual torques applied under production conditions. Whatever the vibration and shock loads experienced, checkstar`s patented contact system ensures contact is always maintained between the readout and the strain gauges. Inferior systems suffer from `brush bounce` that leads to unreliable torque readings. The low inertia design of checkstar ensures accurate and repeatable measurement of high speed transients, such as the point of shut-off on continuous drive tools and the pulsing of impulse tools. Checkstar forms an essential part of the crane uta torque system, enabling plug & play operation with crane readout devices. On board intelligence means the uta checkstar is automatically recognised by the crane readout device, eliminating set-up errors and enabling logging of serial number against measurements for complete traceability. An industry standard [is] version is also available where a user needs the advanced features of the checkstar but already has a readout device from another manufacturer. Both versions can be specified to include an angle encoder with 0.5 resolution.