GearWrench 85071 1/2-Inch Drive Electronic Torque Wrench 25 - 250 ft lb Sealed teardrop head for access, strength, and keeps contaminants out LCD screen with backlight for easy reading of torque values enclosed in a shock resistant housing Buzzer and red, Yellow, Green lights to alert user when target torque is reached Converts ft.lbs, in.lbs, Nm 1/2-Inch Dr. 25 - 250 ft lb / 300 - 3000 in lb / 33.9 - 339 Nm