Our Top Choice
Fieldpiece Dual Port Manometer
Fieldpiece has one mission: to provide instruments that HVACR professionals can daily trust to help them do more.
You can read the input gas pressure and the manifold pressure simultaneously. No need to disconnect from one side of the gas valve and reconnect to the other when troubleshooting.
However, it is larger than it needs to be and requires a light and magnet.
±0.01inWC or 0.01mBar
9V battery / installed
2.5 x 1.2 x 7.2 inches, 1.2 lbs.
Testo Differential Pressure Manometer
Backed by more than 50 years of engineering experience in the field of measurement, Testo’s mission is to provide top-class quality, service, and value in the industry.
Measurements made with this manometer can be immediately saved as PDF or Excel files and the App generates custom reports which can be saved and/or shared by email.
No con has been reported at the time of writing this review.
±0.02 InH₂O / ±0.05 hPa
3 x AAA batteries / included
6 x 4 x 10 inches ; 0.46 lb.
Extech Differential Pressure Manometer
Extech has become famous as one of the largest makers and suppliers of innovative and quality handheld test, measurement, and inspection gears.
This manometer is reliable, remains accurate, and has very useful recording and min/max/averaging features.
They turn on too easily. You may have to remove the batteries to keep them from running down.
±0.5 InH₂O / ±0.5 hPa
9V battery / included
2.9 x 1.9 x 8.2 inches, 2.9 lbs.
TPI Single Input Digital Manometer
Since 1997, TPI has been making concerted efforts towards offering the latest technology to those seeking value-based test and measurement instruments.
This manometer comes complete with required accessories and a built-in hanging hook for easy storage.
No con has been reported so far.
±0.1 InH₂O / ±0.6 hPa
9V battery / included
Not specified, 0.8 lbs.
Dwyer Slack Tube® Manometers
Dwyer makes use of cutting-edge computer modeling to simulate real world situations, producing more precise measurement techniques in its products.
This manometer rolls up compactly, making it very portable. It also comes with all necessary tubing.
The manual is not very detailed.
8.5 x 7 x 3.15 inches, 0.85 lbs.