Electronic torque wrench Accuracy ± 2% Visual, audio and vibration signal Reversible interchangeable heads (supplied with ratchet head) 60 teeth/6º action Performs tightening operations specified by first a given torque and then a specific angle rotation Automatic shut off and auto zero check on power up Data and set value retention during battery exchange Operating temperature range : 5°C - 42°C Storage temperature range : -10°C - 50°C 3 AA batteries included Ranges programmable in Nm, Lbf. ft. , Lbf. in. ISO 6789 89/336/EEC