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The Benefits of a Digital Refrigerant Manifold & Vacuum Gauge
A digital refrigerant manifold is one of the most important HVACR tools as they are used to measure system pressures and temperatures in an HVACR system. Manifolds and vacuum gauges can be used for both diagnostic and servicing purposes. Our SM482V is packed with the features you need to get the job done – easier, faster, and better. Plus, it works with our wireless scale, pipe clamps, and psychrometer and integrates seamlessly with our Job Link System App.
James
Reviewed in the United States on March 3, 2025
Great product. Have been wanting to get one for a while. Didn't disappoint!
José C.
Reviewed in Mexico on February 5, 2025
Muy bien
Owen L.
Reviewed in the United States on January 23, 2025
Great gauges. They do the new refrigerant coming out, micron gauge and nitrogen test work amazing. Highly recommend.
B
Reviewed in the United States on August 16, 2024
As a HVAC technician I liked these guages. No more calculating the sub cooling and super heat by hand and calculator . As always I just have to remember to eventually get them calibrated after I get more years out of them . Works so far and I have regular analogs as a backup just in case .
Monster Review
Reviewed in the United States on July 28, 2024
My dad is a major diy freak, but he often springs for the cheap tools instead of the professional ones. He came over cause my AC was running warm, and his subcool and superheat numbers from his cheap gauge was all over the place. He often put too much refrigerant, then pulled some out, then had to put some back. It was a mess, and he didn't leave me feeling confident in the job. I ended up calling a professional to top it off again. My dad's cheap gauge resulted in him taking more refrigerant out of the unit, then putting more in. The tech ended up charging me 1k to top off 2 units. We bought another house, and started to experience warm air again. but instead of calling my dad or a tech, I decided to wing it, buy the tool all the professionals use, and learn to do ac maintenance myself. With the help of YouTube, I think I mastered the basics. I ended up fixing the issue. I had complete confidence in the superheat and subcool calculations from this fieldpiece. I took my time with it and the results paid off. I even used it to check my car ac, and found it low on refrigerant in no time. Tool will definitely pay for itself in due time. Like every tool, there is a learning curve. But their are tons of YouTube videos to help.
Gerardo Mosqueda
Reviewed in Mexico on June 14, 2024
Excelente producto y calidad lo recomiendo
ajax
Reviewed in Canada on October 19, 2024
After reading some mixed reviews I was a little hesitant ordering this from Amazon but decided to just roll with it, the product was unopened with all pieces and manuals untouched, serial numbers were active and the warranty card was accepted on fieldpiece's website. Will update my review if there are problems in the future but as of today I am happy with my purchase.4 Stars leaving room for field test will update to 5 stars if item stand the test of time part warrently period.
kevin
Reviewed in the United States on October 18, 2024
Once you use an SMAN you won't want to go back.. so many refrigerant and features. Easy to calibrate and high quality. Vacuum gauge is always a nice touch.
SK
Reviewed in Canada on September 2, 2023
As described
Marc Quinn
Reviewed in Canada on June 23, 2023
Unfortunately these gauges have developed an internal leak in just over a year. Extremely disappointing considering my last set had no issues for 6 years. They dont make em like they used to unfortunately.
Tinkerman
Reviewed in the United States on November 29, 2023
Excellent. I am not a pro (anymore, was in the field 30 years ago). But I have a lot of HVAC projects on cars and my buildings. I was tired of the old style in accurate steam gauges. I admit this has more features and some are for the advanced user and over my head. BUT, I used this one on a split unit, a conventional home HVAC and vehicles. ( R-410A, R22, R134-A). I usually always prefer charging units by weight. But there are occassions its not practical, i.e. minor top off. The superheat and subcooling read outs are so easy to do and automatically calculated. Not cheap but it paid for itself already.
Samuel Gibson
Reviewed in the United States on January 23, 2023
Love Fieldpiece products but if you want to buy tools like this, find a local parts house or a actual online dealer that Fieldpiece recognizes. These gauges started leaking at the refrigerant knob about 4 months after entering the field and Fieldpiece did not warranty them because they were bought off of Amazon, Fieldpiece rep told me the best he could do is recommend the manifold rebuild kit.
Deborah A. Halling
Reviewed in the United States on July 13, 2019
I was hesitant when purchasing these due to the price, but was truly sold after the first time using them. I do light commercial hvac/r, and used to lug around multiple pipe clamps, thermometers etc etc. This tool replaced all of them instantly. I also got the JL3RH which syncs up with this, and can leave it down in wic/wif to get live box temps while I'm at the condenser. Several colleagues laughed at me when I told them I ordered this. I laughed at them after they checked it out on a job and they were all drooling.On board vacuum gauge seems accurate as it matches my bluvac pro micron gauge. The tightness test is fantastic, and probably my favorite aspect to the gauges. It records the pressure at the time you turn the feature on then starts a time and shows "pdif" over the duration of your test very clearly revealing presence of leaks.The bag it comes with is alright, but it is not a hard case by any means. It is handy for storing the clamps and temp sensor. I found it cumbersome to put the bag on the gauges with the clamps attached so began storing them separately.I got caught on a roof in a heavy downpour the other week and the manifold got wet, but I managed to get it into the bag quickly and back into my van. The bag remained damp for awhile (once at my van I removed the manifold), and the manifold was clearly wet, so wiped it down and I turned it on and it worked and has worked fine since. I wouldn't recommend getting it wet repeatedly, but this was a concern when I purchased it given the environment hvac/r work is done in.I did notice a slight flaw in the display when I first powered it on, and I was considering returning it. It looked like a burst pixel or something, but the next day I didn't notice it anymore. I have seen it since, but only at odd angles; it isn't visible when I look at the manifold directly so shrug - I'd rather not give up the gauge sending it back and such when I don't regularly notice the flaw.Attached a photo of the manifold in use, think I have another with the JL3RH and second pipe clamp in use, but can't find it atm, will upload it if I find it later. The amp meter in the picture is the a3001 fc with iflex, and is another item I fully endorse and can ramble on about how great it is.
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