The Best Micron Gauges (Review) in 2023 | Autance

First on our list is Fieldpiece’s four port digital manifold with a Micron Gauge. The renowned set is one of the toughest advanced digital refrigerant manifolds on the block thanks to its water and impact resistance heavy-duty casing. Another great perk concerning the design is the strategically placed thermocouple ports that allow you to hook up from all angles.

Up to seven days of detailed data – that’s a whopping 168 continuous hours – can be logged into the wireless unit as well as a maximum of nine separate jobs. One indispensable feature that we love is the timer which tracks the duration of the test itself so ensure that false positives aren’t generated. It’s a strong and staunch solution to your leakage problems, what more could you want?

From the moment you turn on CPS’s Vacuum Gauge, their five-digit Digital LCD Display is a tell-tale sign that their product is as reliable as one can get. CPS’s model is calibrated to meet diligent NIST (National Institute of Standards and Technology) standards, so you’ll receive the most accurate reading possible. What’s more, this reading can be delivered in microns, torr, in/hg, or mBar – whatever unit of measurement you’re most comfortable using.

The field cleanable sensor can withstand up to 400 PSI of positive pressure with a burst pressure of 3000 PSIG. Manufactured in the USA, CPS’s vacuum gauge is of the highest quality possible – all you need to do to maintain its longevity is keep it snugly inside its compact case and clean it well from time to time. Just remember to isolate this vacuum gauge with a core removal value and you’ll be leak-free for years to come.

Fieldpiece’s SMAN360 is a bigger and better replacement from the older SMAN3 sporting a rugged internal and external design that will blow your mind. The most wonderful difference between the old and new models is the fantastic interface display – with the target superheat mode down the middle being the only extra mode that you have to access off the main screen.

As well as the alarm that workers can set to a chosen micron level, the device is able to carry out a linear adjustment of pressure sensors too. Plus, as new features are added online, all you have to do is plug in and enjoy the luxury of owning an up-to-date model downloaded from the comfort of your own home.

What’s one of the only things better than owning your very own Testo manifold? Owning a whole kit. Included inside this kit is a service case and two removable temperature clamp probes. What’s more, the convenient app is great for delivering reports and invoices via email. Evidently, every feature of this kit is geared towards making your evacuation as stress-free as possible. With over sixty refrigerant profiles, the manifold is able to offer direct superheat and subcool readings.

Plus, thanks to Testo’s irresistible Bluetooth technology, the manifold communicates with the Bluetooth smart probes to facilitate monitoring, report generation, you name it! And as if it couldn’t get any better, the Testo 550 includes instant access to any measurement data directly on your smartphone and tablet. What’s not to love?

Are you more than tempted to purchase the Testo’s Digital Manifold Kit reviewed above yet don’t want to part with the cash for all the fancy features? Buying Testo’s Digital Manifold individually is the only gauge you’ll ever require. With sixty available refrigerant profiles at the tip of your fingers as well as the readable 2-line backlit display, you’re looking straight at a bargain.

The product will provide real-time superheat and subcooling with optional temperature probes as well as calibrating high/low side pressures and saturation/evaporation temperatures. Plus, satisfied customers confirm that the accuracy is within 2%. With three available connections at the ready, Testo’s Manifold both adaptable as well as accurate.  

It may not look like much, but Uniweld’s UVG Digital Vacuum Gauge and Adaptor is practically futuristic when it comes down to the features it has on offer. Measurements can be taken in Microns, Pascals, Millibars, and mmHg with resolution down to one micron.

Thanks to the self-calibration feature, no other equipment is needed for Uniweld’s creation to work seamlessly. And the device won’t be running out of charge anytime soon – the two included ‘AAA’ batteries will keep the gauge running for up to 1000 hours. Yet what we love the most about this model is the oil sensor that disregards false readings in real-time as well as flashing ‘OIL’ when the sensor needs rebooting. If in doubt, change it out!

Proudly made right here in the USA, Fieldpiece’s Digital Vacuum Gauge works exactly as it should. The easy-to-read display makes the evacuation process easy due to the display reading ‘OL’ until the vacuum level drops below 10,000 microns. Plus, accompanied with the rate indicator, alarm, and timer, it’s as handy as having another worker on the job with you when assessing the vacuum level in an A/C system.

With a respectable 0-999-micron range to operate within, Fieldpiece takes SVG3’s durability seriously and have kitted it out with a rugged rubberized case and a hook that allows the gauge to be inserted at any angle. And if you’re confused about any part of the process, the user manual will keep you on the right track. No matter the situation, Fieldpiece always deliver – and their Vacuum Gauge isn’t an exception to the rule.

With a range of 0 to 0.39 PSI or 0 to 20,000 microns, Testo’s Micron Gauge will read all the way down to a complete vacuum in a flawless fashion. Made in the USA, the full H20 saturation display is featured to ensure that a full and proper evacuation has been carried out. What’s more, the compact design – featuring a nimble hook at the strap and a polymer case – can take a right beating and still work flawlessly.

Electronically speaking, the Bluetooth capacity will link automatically to your smart phone or device immediately. Plus, with the help of the free Testo SMART Probes app, your reading results will be documented in an accessible manner. All in all, the device is perfect for carrying out a perfect evacuation of air conditioning, refrigeration, and heat pump systems.

If the bright-blue and orange aesthetic of Supco’s Vacuum Gauge doesn’t catch your eye first, then its wide array of features will attract your attention. In particular, we’re a huge fan of both the audible and visual alarms for high and low vacuums that alerts its user to when the limit has been attained. Concerning the design itself, we particularly admire the built-in handing apparatus for maneuverability.

With impressive resolution between 0.5 to 1000 micron as well as a 0-12,000-micron vacuum range, this top-of-the-range model is as accurate and precise as a DIYer can get.

As usual, we’ve decided to save one of the best products for last. Although TPI’s Digital camo-green Vacuum Gauge looks old-fashioned, the multitude of features on offer make it far from outdated. Able to read a vacuum in seven international units of measure, the digital vacuum gauge can successfully operate between 32 to 104 degrees Fahrenheit.

Still can’t make up your mind between this stellar gauge and hiring out a professional? The auto-power feature, meaning that power shuts off entirely when the vacuum is above 12,000 microns, will surely tempt you. And our personal favorite feature has to be the strong magnet mount – the no-hands feature allows us to unleash our inner laziness! All in all, TPI’s vacuum gauge is an inexpensive solution when working on a modern A/C or heat pump system.