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ET180 Klein Tools Digital Differential Manometer

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ET180 Klein Tools Digital Differential Manometer from Klein Tools measures air and gas pressure for port one and port two and the differential between the ports. Easily toggle between units: inH2O, bar, oz/in2, psi, bar, kPa, inHg, mmHg, Kg/cm2, ftH20, and cmH2O. Large, backlit LCD shows minimum, maximum, and average values—a magnet on the back for hands-free operation.


  • (1) Klein Tools ET180 Digital Differential Manometer


  • Digital Manometer measures air and gas pressure for ports P1, P2, and differential
  • Range of +/- 60 inH2O and full scale accuracy of +/-1.5-Percent
  • Strong magnet on back for hands-free operation
  • Units measured: inH2O, bar, oz/in2, psi, mbar, kPa, inHg, mmHg, kg/cm2, ftH20, and cmH2O
  • Calculates minimum, maximum and average values
  • 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


Type : Differential Pressure
Application : Measure Static and Differential Pressure
Special Features : Magnet on Back of Housing
Modes : P1, P2, Differential
Pressure Measurement Range : +/- 60 inH2O
Maximum Pressure (psi) : 2.16 PSI
Maximum Pressure Reading (wc) : 60.0
Minimum Pressure Reading (wc) : -60.0
Accuracy : +/-1.5% Full Scale
Measurement Units : bar, oz/in2, psi, mbar, kPa, inHg, mmHg, kg/cm2, inH2O, ftH20, and cmH2O
Number of Ports : 2
Connector Type : Tapered Stainless Steel Ports from 1/8'' to 5/15''
Temperature Range : 32° to 122° F (0° to 50° C)
Display : Backlit LCD
Batteries : 3 x AAA
Low Battery Indicator : Yes
Auto-Power Off : Yes
Material : ABS, Stainless Steel
Overall Length : 2.47'' (6.3 cm)
Overall Height : 6.19'' (15.7 cm)
Overall Width : 1.38'' (3.5 cm)
Included : 6.56' (2 m) x 1/8'' (3 mm) Inside Diameter Silicon Tubing, 3 x AAA Batteries, Pouch, Instruction Manual
Standard : Conforms to EN 61326-1:2013; EN61326-2-3:2013; CE and UKCA Certified
Weight : 7.2 oz (202 g)
UPC : 092644693366