1. Error: The bidirectional reading error is 2% clockwise and 2.5% counterclockwise. Can be used both positive and negative, Improve work efficiency. 2. Four torque units can be freely switched: kgf.cm, Nm, lbf.ft, lbf.in. 3. It has sound and light alarm function and backlight function, which is convenient for operation at night or in places with insufficient light. 4. Three working modes can be switched freely: real-time mode, mode, and preset mode. 5. Automatic shutdown: The product will automatically shut down if there is no operation for 10 minutes. About products Digital torque gauge is a torque monitoring instrument equipped with a ratchet wrench, which is used for tightening and disassembly control strengths. Suitable for automotive, bicycle, various machinery maintenance and other industries Material: plastic colour: Black Package Contents: 1 x Torque meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.