Elitech 7 CFM HVAC Vacuum Pump with Wireless Micron Gauge, 3/4 HP Dual-Stage for AC/Mini Split Evacuation, Touchscreen & App Data Logging, Compatible with R134a/R410a -SVP-7 Pro

The micron gauge doesn’t work, and there isn’t an option to turn off leak detection. Takes forever to pull down to 500 microns with the auto leak detect feature. I really tried to like it and I dont. Wish I could return it

#1 Its a 12CFM display says it's operating at 7 CFM not sure if this is just a mismatched control guauge or if it's not performing at spec. I Assume it's 12CFM like the label on the pump. It leaks at the micron gauge/solenoid just enough to not allow it to go below 1300 microns. And when it shuts off it doesn't hold vacuum. I'm waiting for their customer service to reply Amazon says yesterday was my last day to return. Im Expecting to get a good new functional unit shipped out.Nice to have on board gauge but you should buy a different pump if needing unsupervised long vac downs. This one has alot of settings and things that will have it stopping maybe when you don't want it to. Does monitor itself for overheating etc. That part is nice.Taking several hours in the present condition to get down to 1000 microns on a 1 ton split unit.Update the vacuum side of the pump was working all along. The gauge just was off.So I asked for a replacement unit at 35 days and they said no refund after 30 days. So as a warranty service they mailed me a new sensor for the vacuum system. As soon as you try to unplug any connectors from the circuit board the solder joints fail and you're holding the socket in hand that should remain soldered to board. So I can't use the new sensor unless I do a complex resolder project on this computer board. Let's see if they will help me out or send out a new board?Buy a field piece. This elitech is not worth the $$.

I've used small single and 2-stage vacuum pumps for years to pull down vacuum bags for composite parts, and it was time for yet another vacuum pump. I was ready to pay more for a more serious pump, when I came across this gem. The pump's performance specs seemed perfect, and the added digital readout and bluetooth app seemed very useful.I've used the pump about 30 times, mostly to evacuate air from a 2 gallon outgassing chamber, and for a couple of vacuum bagging projects. The pump performs extremely well, pulling down vacuum faster and deeper than my other small pumps. The fittings on the pump were the same as my other pumps. The build quality of the pump seems better than most.What amazes me is the LCD display actually shows the pressure at the vacuum inlet, and it can also graph the pressure change over time. It also shows both the pump and the oil temperatures, and sounds an alarm (?) if they reach a preset maximum. It has many other features that I haven't even used yet. The bluetooth apps works great, and I can view and adjust the vacuum set points remotely, and probably do a lot more. Because of the robust display and information on the touchscreen, I will have trouble going back to using "dumb" vacuum pumps.

UPDATE: 4/25/2023I did one job with this, an automobile with small 22oz capacity system. While it did draw a vacuum down the first attempt said I had a leak. I did the leak test and NO LEAKS appeared. Second attempt it drew it down to 347 microns according to the lcd which when using a gauge actually was around 1200 micron. It said there was a 13% leak. After resolving that issue, it finally pulled down to 41 microns according to the gauge. I let run till I got notification it was complete and when the motor shut off it immediately bled off 600, 610, 680, 700 all the way up to 1500, eventually to 18,000. When I reached out to Elitech they said it’s normal because they use a solenoid. They did tell me to take the pipe apart and block it and do a pump down test. I’m not comfortable taking things apart that are still under warranty, as in the past I’ve been told that. Then the manufacturer voided the warranty for tampering.The micron feature is useless on this compressor as it’s not even close to accurate. The touch panel I like, but not necessary. Just something else to get scratched.CONSLCD - ok but kind of pointless.Micron gauge built in - not accurateDrain plug to drain oil - tiny and too long to drain.Only has 1/4 connection - really needs a T with more connections like 1/4, 3/8, and 1/2.LCD easily can get scratchedToo big to fit in most boxes for jobs.IS NOT FOR UNATTENDED USE AS ADVERTISEDWhen draining oil out to ship back, oil in window still showed had a little over minimum to run. After turning pump with reservoir up, the oil drained out. This is NOT reliable as someone could easily run without enough oil and ruin the pump.PROSSomewhat quietDoes draw a vacuumDid not get hot like some do.Good features to tell you if it detects a leak. IF IT WORKS RIGHT. Mine said it had a leak even with just the cap on the fitting. Closed off only to pump.After some considerations and receiving email from company I have decided to send it back and just pay more for the Fieldpiece. This unit is ok and may work for DIYers. But for me, I will be relying on this frequently. I mean if push came to shove I could just take the unit apart, remove the sensors for vacuum, remove the solenoid and the other useless stuff and make it work like my Robinair or even yellow jacket. But what’s the point to buy with these features that just don’t work as they should.4/23/2025So, this is the first time using Elitech and it looks great advertises a bunch of features. BUT, it appears that most features do not work as advertised. Using just my gauges and nothing else closed loop, it pulled down to 256 microns according to the pump. Not accurate. My gauge showed 412 microns. After a second attempt the vacuum pump brought down to 45 microns. I assume may get better with break in?The second issue is, after the pump stops after achieving the best vacuum it can, it does a hold or decay test. It bleeds off fast from 45 to 100s, 600s then eventually hits 1500s and higher. Now I’ve retested this a few times and the last time I did it as closed completely. Leaving cap onto the fitting and tightened it. It dropped to 41 microns supposedly then it did the decay/hold test. At this point the compressor shut off and supposedly closed the solenoid for the inlet. Well the cap was on and never loosened and it bled off super fast from 41 to hundred at a time till it reached 18000. Mins you this was completely closed. With cap on suction inlet. My gauges hold the vacuum perfectly and still show the same vacuum from my test hours ago. So no leaks on my gauge set. So I suspect their inlet T fitting with solenoid and sensor leaks internally. I’m on the fence and almost ready to send it back.When I received it, the shipping box was ok had some marks of damage but it’s a heavy pump. Nothing that would indicate the pump would be broken. After opening the product box I pulled the foam piece out and then the pump. The plastic bag was covered in oil. I wiped it sound and cleaned all of it off. The filler cap was tightened and wasn’t leaking there so I’m unsure where it leaked from. I have no leaks near reservoir to body or the drain plug. I did check drain plug and it’s right to no leaks.It is fast at getting a vacuum drawn, but I don’t know how well it really will be till I use it more. I knew it was a long shot trying to believe that the interface panel would give an accurate micron reading. The only real way to an achieve this, is to do a deep vacuum, putting a micron gauge in the high side port and drawing through the low side without a schrader valve installed. I will be testing this more tomorrow on the job with my valve core change tool which is vacuum rated and this pump. I kind of wish I bought the field piece vacuum pump. And I may just return it without even trying it out. Not too happy. The quality is decent. Not as good as my Robinair ones or even the Yellowjacket ones. I had high hopes and who knows. This may be just fine for my line of work for small to medium HVAC systems. Not like I’m doing commercial or industrial refrigeration systems.

Great pump but..... micron gauge doesn't work properly besides that its a great pump. Tried contacting manufacturer gave me some bow about how the micron gauge works on this unit. Great idea but in action still needed to buy a micron gauge in which I was trying to avoid purchasing. It does detect a leak though. Great function. But pump said 400 microns and external micron gauge said 1200 which indicated a leak in the system. Pump did detect a leak but microns didn't even came close to the external micron gauge. In my understanding any thing isn't a leak. I am still confused. But other then that it is a great pump