Manometer Digital Manometer Gas Pressure Tester Professional 12 Selectable Units Differential Manometer Gauge HVAC Air Pressure Meter with Large LCD Display Backlight, Data Record Funtion

I only needed it once to DIY repair a furnace ignitor switch. It was perfect and saved me time and $$$$ from flaky HVAC guys. It works well and is easy to use and who knows, I may need it again. I did have to DIY an tubing adaptor as this one was too small diameter for my ignitor switch.

I have a moderate level of technical skills and found this worked as described and was easy to set up and use. Can't speak for durability.

Worked well

It showed up coincidentally exactly when I needed to use it . It worked as I expected it to.

Upgraded from one to 5 for great proactive customer service, offered to send me a new unit (a year later) that they would precheck to assure it worked correctly. When i informed them i had already purchased another brand they offered a full refund. A good product is great, sure, as long as there's nothing that goes wrong with it, but there's no replacement for excellent customer service. if you have a problem with the item, contact them and I can say with 100% confidence they will find a solution that makes you happy.--------------------------------------snip---------------------------------<<<<<<<<original text of review>>>>>>>>>DOA-never registered a readingnot exactly what you want when dealing with gas, website is also unmaintained and has no manual or downloads available, even though this unit does have usb-c , it does nothing as far as I can tell

The digital gas manometer is a fantastic tool! It offers precise and reliable measurements, making it perfect for both professional and DIY projects. The easy-to-read display and intuitive controls ensure a smooth experience. It's durable and compact, making it convenient to carry around. Highly recommended for anyone needing accurate gas pressure readings!

Doesn’t read low enough for my use

I needed to adjust the blower in my HVAC unit for proper airflow. A pro grade manometer cost ten times as much as this inexpensive one, so I figured I'd give it a shot first.It got the job done for me, but it is nowhere near the specs claimed. For HVAC work (in the US) you need the inches water column units (inH20.) The listing claims has a resolution of 0.01, which is perfect. Except it doesn't. The actual resolution is 0.04, and it reads zero until the pressure reaches 0.12 minimum. This makes it just barely usable for properly designed duct work.It has an easy to read display with a bright backlight if you need it.Takes 3 AAA batteries. Comes with three no-name non alkaline ones. Don't leave them in the meter when you put it away!Basic operation is pretty intuitive if you understand manometers. For some of the advanced features you will need the manual.One of the extra features is the ability to turn off the auto-off "feature". I wish everything came with that!The manual is very understandable. Way way better than the average import gobbledygook.The included latex tubing is 2 pieces of 3mm ID by 20 inches long. Fits very tightly on the meter ports. Some 4mm silicone tubing I had also fit without leaks.Since it did what I needed for my one-off job despite the less than honest specs, I'm keeping it. If I needed to use a manometer more frequently, I would have returned this one and bought the pro grade.