Features and Benefits:�For tightening screws to values set by measuring torsion angle�Complete with buzzer and LED indicators informing user that preset angle has almost or finally been reached�For right-hand and left-hand tightening�Angle accuracy: +/-2%�Resolution: 0.1°�Up to 9 angle values can be preset�Up to 50 measurements can be preset�Supplied in an ABS case�Power supply: 2 AAA-size batteries (included)Digital angle indicator