Features. This digital torque meter is simple to operate and portable to carry. Large digital display with backlight, supports display of torque value, unit, working mode, data storage number, easy to understand. Two-ways measurement, support adjustable in clockwise and reverse direction, can be used in forward and reverse directions, error: 2% clockwise, 2.5% counterclockwise, more convenient to use with ratchet hand. (Wrench to be purchased separately.) Two working modes, freely switchable between "trace" tracking mode and "peaks" peaking mode. Four units are available, you can adjust between Kgf.cm, N.m, Ibf.ft and Ibf.in depending on your needs. Pre-set values with sound and light alarm, preset values according to the torque to be measured, when the buzzer is switched on and the preset target torque value is reached, the buzzer will sound long and the red light will be on. When used in conjunction with a common ratchet, it becomes a digital torque indicator with the same function as a digital torque plate. (Handle to be purchased separately.) Widely used in the automotive, bicycle and machinery repairing industries. Carried adapter: TQA2-030: 1/2inch square hole to 1/4inch squarehead TQA2-340: 1/2inch square hole to 3/8inch squarehead TQA2-135: 1/2inch square hole to 1/4inch squarehead, 1/2inch square hole to 3/8inch squarehead TQA2-200: 1/2inch square hole to 1/4inch squarehead, 1/2inch square hole to 3/8inch squarehead Product size: 76 * 47 * 47mm / 2.99 * 1.85 * 1.85in Packing List (TQA2-030): 1 * Digital Torque Meter 1 * Screwdriver 1 * Joint Adapter