Digital display torque screwdriver is a carefully designed product for assembly and torque detection of small torque fasteners in precision manufacturing industry. Widely used in instrumentation, household appliances, electromechanical equipment, automobile and motorcycle industries, it is an essential high-end tool to the precise fastening connection of bolts and nuts with small torque and small torque. Compared with the mechanical preset screwdriver, the torque control is more accurate. Function and features: 1. The instrument has backlight function, which is convenient for reading data clearly at night. 2. Automatic shutdown without operation for 1 minute, saving power. 3. Clockwise and counterclockwise bidirectional operation. 4. Real-time taack, and preset value pre can be switched freely. 5. Four torque units are (m,lbf.ft, lbf.in, kgf.cm). 6. 999 group with data storage function. 7. Torque direction mark and battery charge display. 8. Buzzer function:the buzzer respond only when the buzzer function is turned on 9. Accuracy: 2% in both directions 10. Pre-alarm range: 80% of preset torque value 11. Power supply: 2pcs AAA battery (battery is included ) 12. Operating environment: temperature (0-40)℃ and humidity less than equal 85%. 13. Storage environment: (-10-60)℃. Note:Due to different factory batches, there is a slight difference in color and appearance of product accessories, but it does not affect normal use. Colour:As Shown Material:ABS Package Contents: 1 * digital torque screwdriver set 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.