Things to Know Before Purchasing the Perfect Vacuum Gauge

A vacuum gauge is a device that is used to measure the pressure in a vacuum. This pressure differs from the atmospheric pressure. There are numerous applications for vacuum gauges. It is vital to know more about the instrument before you decide to buy one. Using vacuum gauges in various machines attributes to its usefulness. They use it in compressors, HVAC units, air pumps, etc. If you need a vacuum gauge, you need to know the requisites. If you do not, you run the risk of being duped.

What to Keep in Mind While Buying the Right Vacuum Gauge?

The market is filled with different types and brands of vacuum gauges. It can give rise to unnecessary confusion. There are several points that are in play here. You need to keep them into account before you decide of buying one. Look at some of them listed here.

Decide on the Pressure Range

The foremost thing that you need to check out is the pressure range. Now, you must decide on the range that you want. Some people might want the entire vacuum range. While the whole pressure range of vacuum – approximately 1*10-13 Torr – 7.6*103 Torr is available, it is rather costly. It is advisable to purchase a vacuum gauge, keeping in mind the base pressure. You can also buy a particular pressure range that you need.

Look at the Various Types

There are various types of vacuum gauges in the market. You must opt for the one that suits your business the most. The most notable types include digital and dial. But, keep in mind that if you choose the digital one, it is going to cost you more than the other types.

Observe the Range of Accuracy

First you must determine the accuracy range that you need. Usually, the accuracy level in a vacuum gauge is expressed in percentage (%). There are various accuracy levels that you will find. However, the more accuracy the device offers, the more will it cost. If you have a tight budget, you need to deal with this wisely.

Think About the Location of Use

It is imperative to consider the location where you are going to install the vacuum gauge. If it is outside amidst harsh environmental conditions, then you need to opt for something that can endure it. But if you want to use it in a controlled place like the laboratory, you do not need to think about the sensitivity.

Consider the Size

The size of the vacuum gauge is an important parameter. You must keep into account what you want to see via it. If it is too small, then you might not note the data accurately. If you need to use the device multiple times throughout the day, it is better if the size is moderate.

Check Out the Power Feature

Another vital criterion that you need to check out is the power source. There are two types of power features – battery and VAC line. You can opt for the device depending on what suits your requirements the best. If you need the vacuum gauge on the road, then a portable one is much more preferable. It is usually powered by a battery. If you want one for a factory or a laboratory, you can choose the one that runs on electricity.


These are some factors that you must remember while buying a vacuum gauge. If you are not aware of the criteria, you may end up buying something that is of no use to you.