Accuracy:clockwise 2%, counter-clockwise 3%. Tolerance setting range -25% ~ +25%(target torque value). Resolution 0.01N.m. Square driver(L) 1/4". Wireless data transfer to computer. Unit: N.m, in.lb, ft.lb, kg.cm. Clockwise and counter-clockwise operation. Peak and track working mode. Can set tolerance with judgement in peak working mode. 9 target torque values can be set, with audible and visible alarm: green LED light on and buzzer sounds when torque value is 80% ~ 99.5% of target torque, both green and red LED light on and buzzer sounds when torque value is over 99.5% of target torque. Power off in 2minutes automatically. Non-slip grip handle. With damp record. With overload record (once the torque reaches 110% of the maximum range).