DTW Electronic Torque Wrench   4 Models DTW-265i : 265 in-lb / 30 N-m - 1/4" Drive DTW-1200i : 1200 in-lb / 145 N-m - 3/8" Drive DTW-100f :100 ft-lb / 145 N-m - 1/2" Drive DTW-250f : 250 ft-lb / 340 N-m - 1/2" Drive The new Check-Line DTW Electronic Torque Wrenches are designed for simple and precise measurement of industrial, automotive, aerospace and many other applications. The DTW displays Real-Time and Peak torque on a large LCD display in ft-lb, in-lb or N-m, user selectable. The DTW features High-Lo set points that indicate a desired torque value with a bright LED and audible beep.    Features  Displays in-lbs, ft-lbs & N-m (User selectable)  CW and CCW operation  Peak or Real-Time (track) mode (User Selectable)  Buzzer and LED indicator for the pre-settable target torque  50 data point memory  Auto shutdown after 5 minutes of non use  Includes Calibration Certificate  CE Certified  Torque Ranges Model Range Drive Size DTW-265i 26.5 - 265 Lb-in 1/4" DTW-1200i 120 - 1200 Lb-in 3/8" DTW-100f 10 - 100 Lb-ft 1/2" DTW-250f 25 - 250 Lb-ft 1/2"        Specifications Accuracy CW - ±2.5% CCW - ±3.5%  Resolution 0.01 N-m / 0.1 in-lb / 0.01 ft-lb  Sampling Frequency 500 Hz (500 samples/sec)  Display Update Rate 4 Hz (4 times/sec)  Memory 50 Readings  Operation Mode Peak hold/ Track  Unit Selection ft-lb, in-lb, N-m  Length DTW-265i - 390 mm DTW-1200i - 415 mm DTW-100f - 445 mm DTW-250f - 650 mm  Head Type Lever type Ratchet  Gear Teeth 36  Battery 2x AA  Battery Life 110 Continuous Hours 1 Year Standby  Operating Temperature -10°C ~ 60°C  Storage Temperature -20°C ~ 70°C  Humidity Up to 90% non-condensing  Warranty 1 Year