The Digitool Solutions DW Series Torque Wrenches feature patented sensing and micro controller technology with an accuracy level of +/- 1 percent in both clockwise and counterclockwise directions with a readable scale between 10 and 100 percent of full scale. These wrenches are available in 1/4", 3/8", 1/2", and 3/4" drive sizes with torque ranges from 12.5 lb-in to 600 lb-ft. These tools are powered by two AA batteries for up to 500 hours of continuous use. The tool also features a high contrast LCD display and a three-way alert system with a tri-colored warning LED, an audible beep, and a handle vibration to alert the user when approaching and reaching the torque setting. The tools feature a four-button operating pad for easy navigation, a heavy duty ratchet head, high polished steel tubing, and an ergonomic handle. Each tool comes certified and exceeds industry standard and specifications including individual serial numbers for 100 percent traceability.