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Elitech Digital Manifold Gauge HVAC 4 Valve Manifold Gauge with Hoses Vaccum Sensor Thermometer Clamps, EMG-40V

  • Based on 813 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Sep 22
Order within 8 hours and 50 minutes
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Color: 4-Valve


Size: Smart: Touch screen+APP


Features

  • UPGRADED ELITECH TOOLS APP(ioS and Android): An intergraded app, that allows users to manage all Elitech tools as vacuum pump, digital manifold, vacuum gauge, pressure gauge, refrigerant charging scale on one app, more efficient and more intelligent.
  • SYSTEM LEAKAGE TESTING: Monitoring the process of pressure holding and vacuum leakage test precisely with temperature compensation.
  • SMART TOUCH SCREEN: Elitech EMG-40V digital manifold adopts multiple HVAC tools in one unit. It shows changes in vacuum, pressure, and temperature in clear data, and graph display supports data monitoring and analysis in real-time, 100,000 points of data can be recorded and exported by USB.
  • AUTOMATIC CALCULATION: Measure the superheating and subcooling temperature of 88 refrigerants automatically, refrigerants used frequently can be saved on top.
  • CONVENIENT: Thanks to the 4-way valve and automatic heat pump mode, there is no need to switch over to different refrigerant hoses, which enables a quick and easy application

Brand: Elitech


Material: Plastic


Item dimensions L x W x H: 9.84 x 6.3 x 2.76 inches


Item Weight: 6 Kilograms


UPC:


Product Dimensions ‏ : ‎ 9.84 x 6.3 x 2.76 inches; 13.23 Pounds


Item model number ‏ : ‎ EMG-40V


Batteries ‏ : ‎ 1 Lithium Ion batteries required. (included)


Date First Available ‏ : ‎ January 19, 2021


Manufacturer ‏ : ‎ Elitech


Best Sellers Rank: #9,418 in Automotive (See Top 100 in Automotive) #2 in Air Conditioning Manifolds


#2 in Air Conditioning Manifolds:


Customer Reviews: 4.2 4.2 out of 5 stars 813 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 22

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Top Amazon Reviews


  • A better device than many of us need, but little excuse not to at this pricepoint
Color: 2-Valve Size: Basic: LCD Display
I'm not a pro, so this is a review from the point of view of a technically inclined consumer, not an HVAC tech. For what I do, which is maintain and repair the family vehicles and basic troubleshooting of my home AC, this is more than I need, and yet I wouldn't go back to those crappy analog gauges you generally see. I love that it's digital, it's accurate, besides showing the line pressures, it includes tempurature sensor clamps, which are probably more useful for residential systems, but work just fine on an automotive system if you know where to attach them. This allows the device to calculate superheat and subcooling values, a feature pros would utilize. You can select the type of refrigerant in the system, allowing you to use it on R134a one minute, then switch to R4 (or a long list of others I never knew existed) to plug into a completely different system and know that it will still be accurate. It's liquid resistant, and the ports and valve/knob hardware is quality, it makes solid connections, i've had no hint of leaks. The only potential complaint I can see is just that it didn't come with a hose set in the box, so you need to pick those up separately, and figure out which type of end connectors you need for the type of systems you'd use this with (or adapters to switch them). This device has helped me diagnose multiple cars, accurately top off the refrigerant while watching the high and low side pressures and line temps adjust. I was also able to do the same to my aging home system's R4 as it had been a little low. ... show more
Reviewed in the United States on July 31, 2025 by James Gibson

  • 👍
Color: 2-Valve Size: Wireless: LCD+APP
I bought this wireless digital meter and it has exceeded my expectations. The connection with the app is fast and very intuitive, which makes it much easier to record data and read in real time. The pressure gauges are precise and allow you to work with various coolants without problem.The temperature clamps work well and the hoses feel of good quality. The carrying case is also a nice plus, it keeps everything organized and protected. I recommend it for air conditioning and refrigeration technicians who are looking for a modern, reliable and easy-to-use tool. ... show more
Reviewed in the United States on September 6, 2025 by Senen Castillo

  • Making a Name for themselves on Reliability
Color: 2-Valve Size: Wireless: LCD+APP
Great gauges, plus app display and use of other Bluetooth equipment of the same brand. Accurate Readings. Hoses not that good need to be replaced sooner or later, but the devise itself is great.
Reviewed in the United States on August 25, 2025 by ALBERTO A. RODRIGUEZ

  • Very decent tool for the money.
Color: 2-Valve Size: Wireless: LCD+APP
I bought the LMG-10W to diagnose my 4 ton heat pump that's been tripping out with a high pressure alarm. The tool is well made and the plastic housing is thick and robust. Mine came with a carry case for the hose set, clip-on temperature probes and the manifold gauge. The hoses seem reasonable, not Yellow Jacket or Fieldpiece but it's not in that price point. The hoses aren't low loss but wery little refrigerant escaped while connecting to the liquid line while the system was running and none leaked while connecting to the vapor line. The data logging is a nice feature in the app but if the connection to the gauge is lost the app discards the data instead of saving it. I used the vacuum test and it correctly detected a slow leak. All in all it's a great tool. ... show more
Reviewed in the United States on June 29, 2024 by Janitor

  • Easy to use and works well 👍
Color: 2-Valve Size: Basic: LCD Display
I just gave this digital manifold a try today on a residential hvac system and it was really easy to setup and use. I just did a superheat measurement using the pipe temp reader on the suction line and the pressure meter was spot on (Compared it to my analog gauges). The tool feels solid and is not too big, numbers on the screen are large and easy to read. Great case provided stores everything neatly. I wish they could include a temp sensor in the device for dry bulb condenser measurement. Well priced as well, we will see how long it lasts. Recommended. ... show more
Reviewed in the United States on August 26, 2025 by Laurent Bourg

  • Small amount of use
Color: 2-Valve Size: Basic: LCD Display
Not bad for someone who works with ac units a small amount of time. They stopped working after 3 months. I expected them to last a little longer. Better off getting decent quality analogs or investing in a more expensive field piece. No micron gauge which is expected not to be in due to price. Display is clear but durability is not there. The hook kept unscrewing which got in the way of work so not the best. Ok starter set or for a handyman. ... show more
Reviewed in the United States on January 27, 2025 by Nikolai Cartagena

  • screen cracks & inaccurate measurents, horrible customer service
Color: 2-Valve Size: Basic: LCD Display
Beware: 1) this screen cracks for no reason. There are no scuffs, shattering, or impacts to cause it, kept at room temp inside. Yet it starts a crack that then creeps around the perimeter. The display otherwise works ok. 2) after using it a few times, the temp clamp readings were way off by 10f & I noticed the pressure readings were not accurate. I therefore don’t trust the measurements which can really mess up my hvac & don’t recommend this product. 3) horrible customer service: I contacted elitech via their online form & they asked for pics which I then sent. However i then received no response from them. Then I followed up requesting a replacement per their warranty. Also no response. I tried their chat which no agent comes on, then tried calling & get nobody. I have not used the other functions like vacuum etc. Also not too crazy about the carrying case cuz it requires the refig hoses to be entirely disconnected & store them in the case's sleeve. I therefore don't use the case in order to keep the hoses connected to the guage so that air does not get into the hoses. Also I had to be sure to zero out the pressures before using to prevent inaccurate readings and to prevent an 'eo4' message which will lock up the thing & require a full reset. ... show more
Reviewed in the United States on April 5, 2025 by The Leon

  • High quality, better functionality than any of the others!
Color: 4-Valve Size: Pro: Vacuum Gauge+Touch screen+APP
I’m super happy about these! I genuinely needed good gauges for a long time, and these do not disappoint! I’m happy they’re made in USA and really are high quality, equal or better than the others! Highly recommended!
Reviewed in the United States on September 2, 2025 by GromieBooboo

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