Features: For 3D Printer 2GT Timing Belt Tension Gauge can accurately measure tension of timing belts to ensures stability and long drive system. Highly accuracy Measurement:With advanced sensings technology, it can accurately measuretension of synchronous belt. Portable:Compact and lightweight design with battery (optional), easy to carry and use. Easy to Operate:Simple push-button control, intuitived display, easy to operate. Multiple functions application:Suitable for all kind synchronous belts, widely used in manufacturing, automobile maintenance and other field. Specifications: Component: Metal+ABS Length:about 11.50cm/4.53in For 3D Printer 2GT Timing Belt Tensiometer Package Type: With Battery/Without Battery Package Includes: 1PCS 2GT Synchronous Timing Belt Tensiometer note: Due to light and screen difference, the item color may be slightly different from the pictures. Please allow 0.5-2cm differences- due to manual measurement.