Features: The instrument can measure double pressure (gauge pressure) at the same time, as well as dual temperature measurement (need test clip,not include), with automatic multi-unit pressure conversion, automatic conversion of temperature Celsius / Fahrenheit, to facilitate different needs.  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 ). The limit 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 it exceeds the rangeof the instrument. 6) Do not use and store the instrument in high temperature, high humidity, flammable, explosive and strong electromagnetic fields. 7) Please do not change the instrument internal circuit, to avoids any damage of the instrument or danger occurring. 8) Please wear qualified protective equipment during testing. 9) Please use the instrument in a well-ventilated environment to prevents inhalation of toxic gases. Specifications: Pressure test: gauge pressure Pressure test unit: Kpa; Mpa; bar; inHg; PSI. Pressure test range: 0 Kpa – 6000 Kpa Pressure test resolution: 1 Kpa Pressure overload limit: 10000 Kpa (10 Mpa; 100 bar;) Vacuum test: relative vacuum Vacuum test unit: Kpa; Mpa; bar; inHg; PSI. Vacuum test range: -101 Kpa – 0 Kpa Vacuum test resolution: 1 Kpa Temperature test unit: °C (Celsius), °F (Fahrenheit) Temperature test range: -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 Built-in 89 kinds of refrigerant NIST: According to AmericanNIST standard Power Supplies: 4 X 1.5V (SIZE.AA / LR6)  Battery not include Size: 170 * 110 * 50mm / 6.7 * 4.3 * 2.0in Package size: 200 * 150 * 80mm / 7.9 * 5.9 * 3.0in Package weight: 950g / 2.09lb Packing List: 1 * Refrigerantion Digital Manifold Gauge 1 * User manual (in English)