Electromechanical torque wrenches with tactile and acoustic signal,mount for interchangeable insert tools with QuickRelease safety lock, quick setting keyboard.Overload protection with acoustic and visual warning signal, automatic block to prevent unintentional adjustment of the setting, also works as an indication for left-handed use. Measurement Units: N · m,ft · lb, in · lb with the possibility of choosing between different tolerance limits depending on the specific situation of screwing, visual evaluation of the specific screw situation by means of a green and red warning on the display. Additional protection of pre-sets by PIN code possibility tostore, up to 7,500 clamping data, USB interface, automatic calibration alertnext. Deviation of indication ± 2%, handle with knob ± 1 digit 2-component handle practical soft and oil-resistant inserts, grease, fuel, brake fluids and phosphate-based fluids. Supplied with tool carrying case , battery 1.5V (Rechargeable mignon batteries can also be used, NiMH AA / LR6 12V). Specific: Torque wrenches 730D equipped with ratchet model 735, in version HD for the wrenches 65-650 Nm