Feature 1Advanced Digital Readings and Multi-Unit Switching: Equipped with a 32-bit digital processing unit and high-precision data acquisition, this digital manifold gauge ensures efficient and stable performance. The built-in refrigerant database offers accurate readings, making it ideal for testing and maintaining air conditioning and refrigeration systems. 2Ergonomic Design for Comfortable Use: Constructed from high-strength engineering plastic and featuring flexible non-slip silicone, this pressure gauge is designed to be solid yet comfortable in your hand. Ideal for extended use, it reduces fatigue during demanding tasks. 3Clear Visibility in Any Condition: A large LCD display with backlight support allows for clear test readings even in dark environments, ensuring that users can operate the gauge effectively regardless of lighting conditions. 4Long-Lasting Construction for Versatile Applications: The heavy-duty valve switch and 1/4 inch inlets ensure the longevity and versatility of this instrument. It is built to withstand rigorous usage while providing consistent performance across various applications. 5Comprehensive Testing Capabilities: With vacuum and pressure leak testing features, including leak time recording, this single manifold gauge perfectly meets the needs of professionals during the process of filling refrigerants. Users can effortlessly check condensation and evaporation temperatures using the built-in refrigerant database. Item Type: Digital Manifold Gauge Material: Plastic Applicable Refrigerants (Mainstream): R123, R1234yf, R134A, R14, R141B, R142B, R22, R23, R290, R32, R404A, R407C, R407F, R410A, R417A, R438A, R449A, R452A, R507, R508B, R513A, R600, R454B, R454C Pressure Test Units: kPa, MPa, Bar, inHg, PSI, kgf/cm Minimum Resolution: 1 kPa Pressure Test Range: 0 - 6000 kPa Vacuum Test Range: -101 Kpa - 0 Kpa Pressure Test Accuracy: 0.5% (FS) + 5 dgt Power Supply: 21.5V AA batteries (not included) Product Size: Approx. 17*8.7*5cm/6.69*3.43*1.97in Package Size: Approx. 21*15*7cm/8.27*5.91*2.76in Package Weight: 523g/1.15lb Package List 1 x Air Conditioning Refrigerant Gauge 1 x English Instruction Manual