Advanced Technology: 50 Sets data memory with LED flashing / Buzzer notification when under torque or overload. Easy to read LCD display with measurements (kg-cm, N-m, in-lb. ft-lb, angle) Multiple Functions: Flexible Rachet Head, Torque Measurement in Peak & Trace Modes Measuring range: 7.4 to 147.5 ft-lbs. Angle Measurement up to 999°. One-Step Torque & Angle measurement. Flexible Rachet Head: The Flex-head feature allows user to fasten/unfasten bolts in hard-to-access locations while provide uncompromising accuracy Guaranteed Accuracy Range: ± 1% Clockwise ± 2% CCW Torque Accuracy and ±2° Angle Accuracy of indicated value from 20% to 100% of full scale. Quality Assurance: Meets or exceeds ASME B107.14-2004, ISO 6789 standards, individually calibrated. This electric torque wrench set comes with a protective case that shields it against wear & tear when not in use to deliver long lasting performance.