Klein Tools Digital Differential Manometers

The ET180 digital differential manometer from Klein Tools measures air and gas pressure for ports P1, P2, and the differential between the ports. Easily toggle between units measured in H2O, bar, oz/in2, psi, mbar, kPa, in Hg, mmHg, kg/cm2, ftH20, and cmH2O. A large, backlit LCD shows minimum, maximum, and average values. The device has a magnet on back for hands-free operation. Additional notes: * Range of +/- 60 inH2O and full scale accuracy of +/-1.5 percent * Large LCD is backlit for easy viewing in low light conditions * Auto-power off feature conserves battery life * Hold button locks current reading on the display * Silicon tubing, 3 x AAA batteries, and storage pouch included Show Less