Features:The instrument can measure double pressure (gauge pressure) at the same time, as well as dualtemperature measurement (need test clip,not include), with automatic multi-unit pressure conversion,automatic conversion of temperature Celsius / Fahrenheit, to facilitate different needs.Built-in 89 kinds of refrigerant pressure-evaporation temperature database, also calculate thesubcooling superheat, to facilitate direct reading of operating process data.Also it tests percentage of vacuum measurement; pressure leak measurement, leak time speed record.It is deserved to have this multi-functional, accurate and simply operated digital manifold let you dothe jobright.EC/EN61010-1 safety standards for design and production.1) The pressure measured by the digtal manifold pressure tester is gauge pressure.2) Pressure testing ranges from -101Kpa to 6Mpa (-0.1bar to 60bar).3) The limit pressure is 10 Mpa (100 bar).4) The maximum operating pressure of standard hose is 600 PSI ( approximate 4.13 Mpa, 41.3 bar ). Thelimit pressure is 3000 PSI approximate 20.68 Mpa, 206.8 bar ).5) Please confirm the rated pressure value of the tested equipment before testing. Do not use it if itexceeds the rangeof the instrument.6) Do not use and store the instrument in high temperature, high humidity, flammable, explosive andstrong electromagnetic fields.7) Please do not change the instrument internal circuit, to avoidsany damage of the instrument ordanger occurring.8) Please wear qualified protective equipment to protect user during testing.9) Please use the instrument in a well-ventilated environment to preventsinhalation of toxic gases.