DUOYI Digital Manifold Gauge Set, AC Diagnostic Tool Set for 93 Refrigerants (R134a), All-in-One HVAC Vacuum, Pressure & Temperature Tester - ABS Material

‌DUOYI DY522A Digital HVAC Manifold Gauge Features: 【Wide Application】: This tool is designed for a variety of refrigeration systems, including automobile and household air conditioning, cold storage, and other refrigeration equipment. 【Extensive Refrigerant Compatibility】: It comes pre-loaded with data for 93 different types of refrigerants, according to the US NIST standard, making it versatile for working on various systems. 【Precision Valve Control】: The valve switches feature a unique V-shaped opening design. This allows for easy and precise control over refrigerant flow, saving time and effort compared to standard knobs. 【Comprehensive Diagnostic Functions】: The device performs essential tests like condensing pressure/temperature checks, refrigerant subcooling and superheating temperature measurement, and a pressure leakage test to accurately detect leaks. 【Clear & Organized Display】: The 3.5-inch backlit LED screen clearly shows all test results. Data is logically divided and presented, making it intuitive to read and interpret at a glance. 【Durable and Ergonomic Design】: Built with high-strength engineering plastics, the manifold is solid and comfortable to hold. 【Note】 The vacuum and pressure displays on the digital HVAC manifold gauge can be switched between each other. During refrigerant pressure testing, the gauge displays the corresponding evaporation / condensation temperature. Meter has a visualization window through which you can keep an eye on the refrigerant filling. The refrigeration gauge supports units such as kPa, MPa, Bar, PSI, inHg, °C, and °F, which can be easily switched as needed. The foldable hook ensures secure attachment of the digital manifold, freeing your hands to concentrate on testing. The burst pressure of the hose set is 3000PSI. And product supports 4pcs 1.5V AA batteries. A deviation of 3% between the measured temperature of the digital manifold gauge and the actual temperature is allowed. The valve sealing of a slight leakage will not affect daily use. Please operate in accordance with the operating instructions or the professional personnel guide. Before using the device, please ensure that the accessories are properly connected to the host. Incorrect connection will affect the normal operation of the device. After the HVAC gauges must press the ZERO key to clear the numbers after you power it on, and then you can use it normally. Before the temperature test, please pay attention to the conversion between temperature units(Fahrenheit and Celsius). Please use the instrument in a well-ventilated environment to prevent inhalation of toxic gases. Please do not change the instrument internal circuit, to avoid any damage of the instrument or danger occurring. Do not use and store the instrument in high temperature, high humidity, flammable, explosive and strong electromagnetic fields.