They can be used to monitor home appliances powered by propane such as barbecue grills. It can instantly detect gas leaks as well as faults in air conditioning systems. Other uses include maintenance of HVAC systems, monitoring gas pressure in piping and compressor systems, measuring fluid flow and blood pressure, etc.

Are digital manometers accurate?

Digital Manometers and Their Many Uses

The manufacturer claims 0.1% accuracy at 100 inches of water. You set up a test using a deadweight tester and a water manometer.

Can a manometer be used to measure air pressure?

The most common form of a sealed-tube manometer is the conventional mercury barometer used to measure atmospheric pressure. A manometer can be designed to directly measure absolute pressure. The manometer in Figure 5 measures the pressure compared to zero absolute pressure in a sealed leg above a mercury column.