Klein Tools Manometer ET180 Digital Differential HVAC Gas Pressure Tester (Dual Port Stainless Steel 60 inH2O Backlit LCD Rear Mounting Magnet Pouch)

Track Static Air Distribution Losses and Balance Furnace Manifold Pressures Instantly with Hands Free Magnetic Dual Port Transduction

Shop the Klein Tools ET180 digital differential manometer engineered to audit air and gas pressure gradients across commercial ventilation networks. This dual-port diagnostic tester tracks differential variables between Port 1 and Port 2 within an operational boundary up to 60 inH2O and a maximum safety limit of 2.16 PSI. Integrating 11 selectable engineering scales, a heavy-duty rear mounting rare-earth magnet, and an advanced calculation chip, it isolates structural static pressure leaks and valve tracking errors inside tight sheet metal furnace enclosures.

Best Used For:

• Gas Manifold Calibration: Interfacing the tapered stainless steel inputs with furnace valves to adjust operating metrics between 0 and 2.16 PSI.
• Duct Static Surveys: Running structural air distribution checks across supply and return branches to trace airflow resistance trends.
• Ventilation Balancing: Monitoring micro-pressure differentials in commercial air handlers to balance structural indoor climate distribution logs.

Key Performance & Safety Features

• Dual Port Transduction: Dual inputs capture separate localized static pressure lines concurrently to deliver real-time differential values.
• 11 Engineering Scales: Toggles manually between inH2O, bar, oz/in2, psi, mbar, kPa, inHg, mmHg, kg/cm2, ftH2O, and cmH2O metric benchmarks.
• Rear Mounting Magnet: Rare-earth magnetic backing plate anchors the chassis safely onto iron furnace cabinets for clear hands-free adjustment.
• Real-Time Data Logs: Onboard logic modules aggregate maximum, minimum, and moving average baseline values to streamline troubleshooting sweeps.
• Illuminated Digital Monitor: High-definition liquid crystal interface populates illuminated character fields to conquer visibility barriers inside dark attics.

What's Included

• ET180 Digital Differential Manometer
• 6.56-Foot (2 m) Silicon Tubing (1/8-inch ID)
• Three AAA Alkaline Batteries
• Protective Storage Pouch
• Instruction Manual

Technical Specifications

Pro-Tip: Before opening gas valves to verify furnace manifolds, disconnect the lines and push the zero button with your inputs open to air; this steps calibrates local atmospheric references to guarantee absolute transducer precision.