Feature: 1. Just add a common ratchet wrench to become a digital torque wrench with the same function as a normal torque wrench. 2. Full-featured, small and compact, easy to use and carry. 3. It can be widely used in machinery, aviation, railway, maintenance, inspection and other fields. 4. The storage box can better protects and store tools and accessories. 5. 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. Specification: 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 to use 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 Package List: 1 * Digital Torque Wrench 1 * User Manual 1 * Box