High Precision Electronic Digital Display Torquemeter Adjustable Torque Meter 6.8-135Nm Professional Universal Wrench This is a professional universal torque wrench with high precision and practicality. It can be widely used in machinery, aviation, railway, maintenance, inspection and other fields. Features: Just add a common ratchet wrench to become a digital torque wrench with the same function as a normal torque wrench. Full-featured, small and compact, easy e and carry. It can be widely used in machinery, aviation, railway, maintenance, inspection and other fields. The storage box can better protects and store tools and accessories. Specifications: Material: plastic+steel Color: black Battery: 1 * CR2032 battery (not included) Type: WRG2-030, WRG3-135, WRG4-200, WRG4-340, WRG6-600, WRG8-1000 (optional) Accuracy: ±2% Memory: 50 Display resolution: WRG2-030: 0.01 WRG3-135/WRG4-200/WRG4-340/WRG6-600/WRG8-1000: 0.1 Display range: WRG2-030: 0.3-30Nm WRG3-135: 1.35-135Nm WRG4-200: 2-200Nm WRG4-340: 3.4-340Nm WRG6-600: 6-600Nm WRG8-1000: 10-1000Nm Alarm setting range: WRG2-030: 1.5-30Nm WRG3-135: 6.8-135Nm WRG4-200: 10-200Nm WRG4-340: 17-340Nm WRG6-600: 30-600Nm WRG8-1000: 50-1000Nm Accuracy guarantee range: 20-100% Drive: WRG2-030: 1/4" WRG3-135: 3/8" WRG4-200: 1/2" WRG4-340: 1/2" WRG6-600: 3/4" WRG8-1000: 3/4" Operation mode: peak, track Unit selection: kg-m, lb-ft, N-m Operating ambient temperature: -10℃-60℃ (13.9ºF-139.9ºF) Storage temperature: -20℃-60℃ (-4ºF-140ºF) Operating relative humidity: 15 to 90% noncondensing Auto shut off: 80 seconds (if do not use digital torque adapter) Torque wrench length and hight: WRG2-030: 70 * 40mm / 2.8 * 1.6in WRG3-135: 70 * 40mm / 2.8 * 1.6in WRG4-200: 80 * 45mm / 3.1 * 1.8in WRG4-340: 75 * 45mm / 3.0 * 1.8in WRG6-600: 70 * 45mm / 2.8 * 1.8in WRG8-1000: 70 * 45mm / 2.8 * 1.8in Torque wrench weight:  WRG2-030: 140g / 4.9ounce WRG3-135: 198g / 7.0ounce WRG4-200: 211g / 7.4ounce WRG4-340: 183g / 6.5ounce WRG6-600: 570g / 1.3lb WRG8-1000: 570g / 1.3lb Package size: 125 * 95 * 65mm / 4.9 * 3.7 * 2.6in Package weight:  WRG2-030: 242g / 8.5ounce WRG3-135: 300g / 10.6ounce WRG4-200: 313g / 11.0ounce WRG4-340: 285g / 10.1ounce WRG6-600: 672g / 1.5lb WRG8-1000: 672g / 1.5lb Package List: 1 * Digital Torque Wrench  1 * User Manual 1 * Box