DUOYI 522A Digital Manifold Gauge Set, HVAC Vacuum Pressure&Temperature Tester, Air Conditioning Tools & Equipment

The DUOYI DY522A is a tool for installing, testing, and fixing air conditioners and cold storage units. It uses advanced digital circuits and a high-precision pressure sensor. It has a built-in database of 93 refrigerants based on NIST standards. The tool tests pressure in real time and gives you the saturation temperature. This helps you install or service refrigeration systems more easily. DUOYI offers other digital manifold gauges and related tools for different needs.

• Refrigerant pressure gauge vacuum table of the digital gauges HAVC can be switched to each other.
• The refrigerant pressure test, the meter can display the corresponding evaporation/condensation temperature.
• Air conditioning diagnostic set has a visualization window through which you can keep an eye on the refrigerant filling.
• Refrigeration meter unit KPa, Mpa, Bar, PSI, InHg, Mpa, Celsius, Fahrenheit, which can be easily switched as required.
• The refrigeration kit uses high-strength engineering plastics and flexible non-slip silicone design, the whole machine is solid and comfortable to hold.
• The fold-able hook assures a secure attachment of the digital manifold gauge let you free 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.