• Used for measuring differential/positive /negative pressure, 11 selectable unit: inH20,psi,bar,mbar,kpa,inHg,mmHg,ozin²,ftH20,cmH20,kgcm².
  • Suitable for measurement and field check of ventilation and air conditioning system, corrective maintenance for clean room or any gas pressure system.
  • LCD display with backlit;Simple operation, clear reading.
  • A indispensable testing tool for HVAC technician, operation maintenance engineers and researchers.
  • Specifically for use in HVAC, pneumatic controls, medical equipment, gas appliance repair and installation, laboratory testing, computer peripherals.

I would like to say that this product is really good. I have ordered this one for hvac to check for the air pressure and it is pretty accurate in comparison to my old one. I like the fact that this is a screen instead of like my old one that just has a needle that goes up and down based on the air pressure. I really like this one and it is nice and small so easy to carry around

I bought this about a year ago and wanted to wait to review it to see how it held up. I am a teacher at an HVAC school so this thing gets used alot and gets alot of abuse. Well, a year later, this thing still works like it was new. Well worth the money.

Works great!! To calibrate to “0” , while not connected, hold down the hold button for a few seconds.

This is a great manometer for the money. If you only need one to use less than 5 times a year than this one is perfect. No magnet on back and not super durable but should hold up with care. I have been dealing with an intermittent furnace issue which I tried initially to fix and gave up and call a service company. One service call later still had the same problem. I narrowed the issue down to to the gas valve and wanted to see what the outlet pressure was so I bought this. I needed to buy an extra hose and coupling to fit my application. Once I got that if was super easy to use and quickly determined it was putting out 2.6 WC instead of 3.5 WC. I made the adjustment and furnace issue is gone.

If you need to check propane or natural gas pressure this unit is a great buy.

I bought this manometer as a backup to one I own but presently not available for my use. The low price is nice and the tool seems responsive enough so it seems like a decent tool. I didn't have anything to compare it to for accuracy but I was using the meter for comparison pressure on a furnace to measure total static pressure, filter pressure drop, natural gas manifold pressure, etc. I was able to get the measurements I needed to help diagnose a couple of issues with the furnace and this tool is what I needed. It may not be as accurate or sensitive as very expensive professional models but it most certainly worked for this project. The only negative item I noted is that even after zeroing the meter, the display would creep up from 0.0 up to .01 or .02". If this is accurate that I felt like this is plenty accurate for my needs. I've only used it for the one project so I can't comment on longevity but my opinion after this one project is it's a pretty decent tool.

Easy to use and more accurate than the needle gauges I have used in the past for adjusting propane and natural gas pressure regulators.

Easy to read, easy to use. The backlit display is light enough to be read in daylight, and dim enough so as not to be harsh on the eyes in low/no light situations. It has more pressure scales than I'll likely ever need, and the supplied hoses are a nice tight fit. It even comes with a battery!

Price wise is s great deal,works perfectly,easy to use very convenient due to small statue.