Electronic torque wrench Accuracy ± 2% Visual, audio and vibration signal Reversible interchangeable heads (supplied with ratchet head)|60 teeth/6º action 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.