Description: Manometer Gauge: This listing is for a Digital Pressure Gauge Differential Pressure Meter, a high precision micro pressure measuring instrument that can test both positive and negative pressure. Material: The digital manometer is made of sturdy pp material, ensuring its longevity and reliability in various environments. Size: With dimensions of 150*55mm, this digital air pressure meter is easy to handle and convenient to use in different settings. Package Includes: Each purchase comes with 1 complete set of the 2 Port manometer gas pressure tester, providing everything you need for accurate pressure measurements. Versatile Use: Ideal for various applications including HVAC systems, laboratories testing, computer peripherals and more; this tool provides precised readings to meet your diverse needs. Size Chart: 150x55mm/5.91x2.17inch Package Includes: 1set Manometer Gauge Note: Please allow slightly errors 1-2cm differences due to manual measurement.