The inst ent uses high-strength engineering plastics and flexible anti-slip silicone design, the whole machine is solid and comfortable to hold. Built-in 32-bit digital processing unit and high-precision data acquisition unit, high data and stability. Large-size LCD display, backlight support, data display clear and easy to read, convenient light operation. Long-life valve-switch, 1/4-inch standard interface design to that the inst ent's durability and versatility. Built-in 89 kinds of refrigerant pressure-evaporation temperature database, also calculate the subcooling superheat, to facilitate direct reading of operating process data.<br><br>The intelligent electronic refrigerant group inst ent is an auxiliary inst ent for the installation, testing and maintenance of refrigeration equipment such as air conditioners and cold storage. The inst ent has double pressure test, dual temperature test, digital readout, multi-unit switching, multi-mode function and built-in refrigerant database. It tests percentage of vacuum measurement; pressure leak measurement, leak time speed record. Multi-functional, accurate and simply operated digital manifold let you do the work right. Pressure test ranges:0 Kpa-6000 Kpa Pressure test resolution:1 Kpa Pressure test accuracy:+/- 0.5%+5dgt Pressure overload limit:10000 Kpa (10 Mpa; 100 bar;) Vacuum test range:-101 Kpa-0 Kpa Vacuum test resolution:1 Kpa Temperature test ranges:-40°C-150°C (-40°F-302°F) Temperature test resolution: 0.1°C (-40°C-99.9°C), 1°C (100°C-150°C) 0.1°F (-40°F-99.9°F), 1°F (100°F-302°F) Temperature test accuracy:+/- 0.5°C + 2dgt +/- 0.9°F + 2dgt Power:4 x 1.5V (SIZE.AA / LR6) Battery (not include) Pressure of tube:600-3000 Colour:Gray-Black Material:Plastic<br><br>Package Contents: 1* Refrigerantion Digital Manifold Gauge 2 * Temperature Clip 3 * Test Pipes<br><br>O