DIGITAL DIFFERENTIAL MANOMETER Monitor and troubleshoot problems in HVAC systems with the ET180 Digital Differential Manometer from Klein Tools. Measure static and differential pressure from two ports in air and gas systems. Easily toggle between units: inH2O, bar, oz/in2, psi, mbar, kPa, inHg, mmHg, kg/cm2, ftH20, and cmH2O. Large, backlit LCD shows values when toggling between maximum, minimum, and average. Magnet on back for hands-free operation.
