Digital Refrigerant Manifold Gauge Set with Built in Battery for AC Use I. Standard Version Product Weight: 2.8 kg Package Dimensions: 350 × 340 × 100 mm II. Version with Additional Tubing Product Weight: 3.6 kg Package Dimensions: 350 × 340 × 100 mm III. Version with Additional Black Tubing Product Weight: 3.6 kg Package Dimensions: 350 × 340 × 100 mm IV. Automotive Air Conditioning Service Edition Product Weight: 3.9 kg Package Dimensions: 350 × 340 × 100 mm V. General Technical Specifications (Consistent Across All Versions) Pressure Range: -1 to 50 kg Refrigerant Types: 72 Accuracy: 0.4% Screen Size: 70 mm Battery Capacity: 3.7 V, 3000 mAh Standby Time: 100 hours / 8 hours at full power