Bezzera Matrix DE Dual Boiler Espresso Machine – V2, Triple PID

(1 customer review)


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Bezzera Matrix DE Dual Boiler Triple PID Espresso Machine + Bezzera 5965634R Wood Handle 58mm Bottomless Portafilter
Price for both: $3,017.41

Bezzera Matrix DE Dual Boiler Espresso Machine – V2, Triple PID


The Bezzera Matrix DE Dual Boiler espresso machine illuminated (quite literally) at HOST Milan 2017.  Every attendee, including us, were drawn to this glowing beginner dual boiler espresso machine. After talking directly with Bezzera, we realized there is a lot more than meets the eye with this machine. The Matrix is designed with user functionality as a key focus. In addition, durability is inherent in Bezzera espresso machines, as well as its attractive design. Thus, if you need an espresso machine to entertain with three different PID’s, look no further!

Rock solid stainless steel frame. Stainless steel front and rear panels. Very informative touch screen display backed with waterproof insulation internally.

Touch Display

The Bezzera Matrix DE Dual Boiler sports a beautiful 3.5″ LED touch display. This allows you to program a number of functions with ease. Adjusting the temperature between the two boilers is crystal clear, as well as checking the water levels. Also, you can adjust the color of the signature LED body panels also can be adjusted in the settings of the touch display. Furthermore, other programs on the touchpad include:

  • pre-infusion, priority heat up between boilers
  • auto on/off settings – once per each day of the week (maintenance reminder and filter reminder need to be turned on)
  • switch between direct plumb and reservoir
  • automatic backflush program
  • maintenance reminders
  • selection of different languages
Illuminated LED Body Panels

Made from durable plexiglass, these LED near the bottom of the body panels provide eye-catching illumination for the home. Further, you can customize the colors on the touch display to fit any mood. The glow beautifully reflects off the polished mirror finish stainless steel body. Additionally, there are separate PID thermostats, one for the coffee boiler and one for the water/steam boiler. All controlled by a 3.5″ touch display.

Electronic Dosing

A keypad above the grouphead displays four designated buttons for volumetric coffee dosing – meaning you can program how much water is pumped through the grinds by volume. The 5th button on the right with Bezzera’s insignia is for manual dosing (on/off) of the water.

Independently Controlled Boilers

Two separate PID’s sensors monitor the .45 L coffee boiler and 1L water/steam boiler. You can control the boiler temperatures through the Touch Display. Moreover, through the touch display, you can program which boiler you would prefer to heat up first or have priority! Both internal boilers have insulation on their sides.

In addition, each boiler can be turned on or off independently.

PID Temperature-Controlled Grouphead

The Bezzera grouphead on the electronic DE version of the Matrix has its own PID sensor and heating element – providing superior temperature control. Additionally, the temperature is preset by Bezzera and can not be modified.

Multi-Directional Steam and Hot Water Wand

Allows for more flexibility. Joystick controls give instant on / off operation as opposed to knobs that you must turn clockwise / counter-clockwise. Each wand has a rubber cover to prevent your fingers from burning. However, cool touch wands were NOT selected as this steam wand offers a greater throughout of steam power!

Wooden Handles on Valves and on Portafilters

The Bezzera Matrix DE Dual Boiler comes with wooden handles for the single and double spouted portafilters and joystick levers. After all, less plastic is always a bonus in our eyes.

Three Way Solenoid Valve

Allows quick removal of portafilter after espresso extraction by relieving the pressure built up in the grouphead. The result is a dry puck of coffee you can easily knock out of the portafilter.

Rotary Vane Pump and Motor

Produces a quieter extraction vs a vibratory vane pump. Below the tank/reservoir, you can make adjustments underneath the espresso machine.

Very Large Water Tank

A 4-liter water reservoir means fewer refills for higher volume use. Electronic sensors detect low water levels and indicate it on the touch display. Refilling occurs from the top of the machine by lifting up the lid on hinges. However, we strongly recommend removing the reservoir for refilling any espresso machine to avoid getting any water on top of the espresso machine.

On the left side of the reservoir, there is a low water sensor. This sensor can be calibrated through the Touch Display screen.

Passive Cup Warmer

Able to hold up to six small cappuccino cups and passively warm them to ensure coffee remains hot.

Automatic Water Refill to Boiler

An automatic water refill of steam boiler plus safety cutoff minimizes damage to steam boiler from lack of water.

Accessories included:
  • One single and one double spout portafilters with walnut wood handles
  • 1-cup & 2-cup stainless steel filter baskets
  • Blind filter basket for backflushing/backwashing the oils form the grouphead
  • Plastic tamper. We suggest getting a higher grade tamper
  • Plastic scoop
  • Grouphead cleaning brush for cleaning the grouphead gasket
  • Reservoir plug for reservoir for when plumbing in the machine to a water line
  • Catch basin installed below drip tray for draining to your plumbing system
  • Vinyl drain hose (~1 meter) included to connect to drain basin
  • 1.5-meter stainless steel braided hose with one o-ring for connection on machine side. Waterline side is 3/8th BSPP threads (please use contact us link above if you need more info)
  • Instruction manual.

For more Bezzera products, please visit our Bezzera brands page. If you have any questions, please reference the Q&A tab on each product page.


Height (inches)

17, approximate

Width (inches)

12, approximate

Depth (inches)

18.5, approximate

Weight (pounds)


Wattage (watts)

Coffee – 800, Steam – 1200

Voltage (volts)

110 – 120

Boiler capacity (liters)

Coffee – 0.45, Steam – 1

Tank capacity (liters)


Portafilter size (mm)


Country of manufacture

Milan, Italy



Espresso Machine Warning:

  • ELECTRICAL WARNING: To avoid electrical damage to this espresso machine which is not considered a manufacturer's defect, please acquire and install a single-outlet surge suppressor rated at 1080 joules or higher. the lack of the recommended surge suppressor, the espresso machine can be damaged at the power switch, the electronics, the heating element, the pressurstat or the wiring inside.
  • WATER WARNING: To increase the useful life of and not damage your espresso machine, please use softened water. Softened water is water without calcium and without magnesium, but still has other minerals for espresso extraction. Do not use distilled water, purified water, nor reverse osmosis water as these types of water create oxidation with the metals and cause the same damaging effects as limescale.
  • DESCALING WARNING: We do not recommend descaling unless there is an issue with the espresso machine. The reason is that too much descaling can eat away at the metals and gaskets inside an espresso machine.

  1. Since this is a new model, every Bezzera Matrix/Duo model gets inspected, bench tested, and calibrated with 'water only' prior to shipping. Upon arrival, please use the machine within 5 business days.
  2. Do not move or lift the machine from top rails as damage may occur to the rails or body of the machine.
  3. The Bezzera Matrix DE comes from Bezzera on a mini pallet, which is why we will ship this machine out to you, the customer, on a pallet. Additionally, it is less likely that your machine will arrive damaged with this shipping method.
  4. Note from Bezzera dated 03/25/2021

    20 AMP plug will continue to be used on Matrix and Duo 110 Volt version because the safety standards do not allow to use an undersized plug compared with the power consumption reported in the machine data label.

    We will add an advice into the machine box where we explain to the final user that it is possible to use the machine with a 15 Amp plug adapter only setting a boiler priority.

    We would like to inform you that, according to our tests, the major difference in the machine performance, setting or not the boiler priority, is in the warm-up period

    We faced not big performance differences in the coffee thermostability and water/steam services, in the normal machine use, giving a priority to a coffee or steam boiler


    WARM-UP TIME (no priority)

    Coffee service: 3:20 min

    Hot water / steam service: 6:45 min


    WARM-UP TIME (coffee boiler/service boiler priority)

    Coffee service: 7:10 min

    Hot water / steam service: 10:10 min



    Power supply: 110V

    Frequency: 60 Hz

    Room temperature: 22°C

    Coffee boiler set point: 92°C

    Service boiler set point: 125°C


    We would like also assure you that there is not safety problem with the Matrix and Duo machines sold until now.

    15 AMP plug and cable are designed to be used with 15 AMP in a continuous way and they admit pick of current until around 20 AMP. During our tests we have recorded 17,76 AMP (as maximum current) only in the 3:20 minutes of the warm-up time (when both boiler heat up together).

    During the coffee brewing the service boiler heating element is disabled and when the machine is not used, thanks to the PID controls, only impulses of current are given to the heating elements.

Please use the diagrams below to help find the exact part you are looking for. After you find the part, copy the SKU #. Then use the search bar at the top of our website. If there are no results in the search, we most likely do not have the part. We only special order parts if the specific model was purchased through 1st-line Equipment. For general questions, please use our parts inquiry page.


1 7474218
2 5964676
3 5225230
4 5492022
5 5224403.01
6 7816002
7 5370920
8 5073642LL
9 7663626.01
10 5074924SG
10A 5074923SG1
11 5340531DL
12 5968124
13 7497009
14 7823001
15 5221826
16 5074672LW
17 5073643LW
18 5073644LW
19 7819902
20 5260206
21 7812805
22 5961602.01
23 7474217
24 5074673LW
25 5194654
26 7611502
27 5521512
28 5968127R


1 5283062 37 7814002
2 7815001 38 5058411LL
3 5221844 39 7470604
4 7816002 40 7474219
5 7304507TR 41 5055752LW
6 7304517 42 7374002
7 7666005 43 5302065.01AL
8 5162421LL 44 7496073.01
9 7304502TR 45 5471521.01
10 5162415LL 46 5471509
11 5162414LL 47 5224617
12 5492019 48 7496076
13 5221835 49 7373012
14 7815003 50 7611508
15 7812601 51 7730509
16 5058463LL 52 5963171
17 7474212 53 7741005.01 (110V)
18 5221830 53 7742404.01 (220/240V)
19 7633012 54 7703018
20 7819901 55 7630339 (110V)
21 7666006.01 55 7630341 (220/230V)
22 5194554 55 7630343 (240V)
23 7611516 56 7701123 (110V)
24 7303001TR 56 7702322 (220/230V)
25 7304505TR 56 7702415 (230V)
26 7304538TR 57 7431001
27 5194617 58 5471001
28 5225228.01 59 5191501
29 7304534TR 60 5302009
30 7826206 61 5162416LL
31 7304001TR 62 5162418LL
32 5223003 63 5194532
33 5301504TR 64 7303039
34 5162412LL 65 7200514
35 5302057AL 66 7492004
36 7816027 67 5226416AL

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1 review for Bezzera Matrix DE Dual Boiler Espresso Machine – V2, Triple PID

  1. Jack Douglas

    This is my personal review of the Bezzera Matrix DE Dual Boiler Triple PID espresso machine I bought from 1st-Line Equipment. The machine is very heavy,109 lbs. with pallet. Without the pallet it is still very heavy. I’m strong but needed some help lifting the machine. I’ve had the machine since December 26, 2019, the day after Christmas and just had a BWT water filter system installed this past weekend, 10 January 2020. It is a huge upgrade from my previous single boiler espresso machine. This model has the red, green or blue lighted side panels. I keep mine on blue just because I like blue and it’s looks great in my kitchen. The lighted panels can easily be turned off.
    I highly recommend reading the entire manual before attempting to use the new machine including filling the water tank; it has to be calibrated in order to shut off properly and requires a dry and empty tank in order to set this function. This is a one-time setup. The unit comes with tank mode as the default setting.
    The correct espresso dosing amount and tamping pressure took a number of tries before I got a really good shot. The Bezzera Matrix DE is a very sensitive and sophisticated machine. A good espresso bean grinder is a must for use with the Bezzera. Getting the right degree of fineness takes some trial and error. I did not buy a calibrated 30 lb. tamp or espresso scale, so it took some experimenting and a call to Jim at 1st-line to get the dose volume and time of shot sorted out after I had gotten the fineness of a good grind. That’s paid off because I’m now getting shots superior to my local café shop. I’ve stopped going out for espresso as I now have really good at home. I use the pre-infusion function, but I’m not sure if it improves my shot. I like the concept so I use it.
    Though the Bezzera Matrix DE is simple to use after getting familiar with its many functions and the electronic display panel. It is definitely a professional quality machine that requires a commitment by the user and an understanding of a good quality espresso shot.
    The Bezzera Matrix DE has 5 buttons on the top front of the machine that dispense the water. There is no lever to manually dispense the water. I love the buttons because my old espresso machine had buttons and no lever. I started by using the manual button, the one on the far right with squiggles on it, until I could repeat a good double espresso shot. Once I felt good about my shot I used the dose programming button for a double espresso to automatically set it. This is one of the features that sets the Bezzera Matrix DE apart from other machines and for me a favorite. Once the auto button is programmed for a double shot the machine will automatically shut off when the cup is filled with the exact same volume of espresso shot after shot. So, if you overfill, underfill, under tamp or over tamp the portafilter the machine automatically adjusts the time of the shot to shut off when the pre-programmed dose volume is attained. That one thing sets the Bezzera Matrix DE apart from any machine I’ve owned. You get a perfect double espresso, or shot of your choice, every time.
    The steam lever works great and creates great foam for lattes and cappuccinos. It has taken me practice to get good results and I’ve dumped a few mishaps. The hot water lever works great, but I seldom need that feature.
    The Bezzera Matrix DE requires regular cleaning. After every shot I purge the group head with a few seconds of water, clean it with the brush. and purge it again for a few seconds. I set the group head maintenance reminder, a feature of this machine at 50 erogations and a message appears to clean the group head. There’s a election for slow or fast cleaning. For my first cleaning I used fast. I’m going to reset the frequency to 100 because I clean the group head after every shot. The auto-clean function is a very convenient feature and makes that job super simple.
    I love the auto on-off function to program the machine to turn on every morning at a certain time and shut off at a set time later. It works great, but I learned that if you want to turn the machine back on later in the day the machine will not automatically shut back off after this out of cycle use. I learned that you have to manually shut off the machine by pressing the forced shut-off button, the bottom one, on the electronic display panel to re-engage the programmed auto turn-on turn-off times. After this is done the auto turn-off function will be re-engaged.
    The Bezzera Matrix De is a top quality unit, all stainless-steel frame and interior components, substantial construction and a pleasure to use. With the BWT water filter installed the espresso is really delicious. I’m happy that Jim at 1st Line helped me with the purchase and I’m looking forward to years of good service from it.

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Please ask follow up questions as a new question. Submitted questions will be first reviewed, answered, and lastly publicized.

    When filling the steam boiler after display replacement the valve on top shoots a stream of water towards the inside of the machine. How can I prevent this?
  1. 0 votes
    Q When filling the steam boiler after display replacement the valve on top shoots a stream of water...... Read more answer now
    Asked by wyatt on July 7, 2022 6:39 pm
    Answered by the admin

    We suggest not using the machine until the leak is repaired. Possible reason why the board went defective in the first place. The leaking parts need to be repaired or the reason for the leak needs to be determined. Unfortunately, this problem is beyond the scope of our free services via Q&A.

  2. On my bezzera matrix de machine the display is no longer working. The touchscreen still works but the backlight is not on and thus the screen appears blank. Have you seen this happen before? Is it common?
  3. 0 votes
    Q On my bezzera matrix de machine the display is no longer working. The touchscreen still works but...... Read more answer now
    Asked by Wyatt on February 24, 2022 2:10 pm
    Answered by the admin

    Although not common, we have seen this before on several machines over the past 3-4 years. Again, not common.

  4. Hi Guys, my Matrix DE is about 18months old, recently when the unit turns on the rotary pump just runs and runs & the steam never builds pressure, after a 2-3 minutes it stops and has an error "loading timeout". What do I need to replace / fix?
  5. 0 votes
    Q Hi Guys, my Matrix DE is about 18months old, recently when the unit turns on the rotary pump just...... Read more answer now
    Asked by Colin on November 24, 2021 12:49 pm
    Answered by the admin

    Sorry, this is beyond the scope of our free support services we offer as this can be one or more issues, from the brain unit, to wiring, to the refill probe, to the solenoid valve. The machine needs to be evaluated by a professional to determine if there are multiple issues affecting the undesired outcome.

  6. I purchased a Bezzera Matrix DE Dual Boiler Espresso Machine – V2, Triple PID from 1st line 2 years ago and it's recently been giving me problems. Currently when I turn the machine on that "change water filter" screen comes on and freezes not allowing the touch screen to work. From 4 to 1 week ago when I turned it on it would constantly go to the set boiler and steam temperature screen every second or less. It would sometimes stop and after a few minutes begin again going crazy with beeping beeping beeping. A week ago that mostly stopped but today the water filter thing happened and now i cannot use the machine at all. Any experience with these issues? I am not sure if the machine is still under warranty.
  7. 0 votes
    Q I purchased a Bezzera Matrix DE Dual Boiler Espresso Machine – V2, Triple PID from 1st line 2 yea...... Read more answer now
    Asked by Keith on April 22, 2021 2:35 pm
    Answered by the admin

    Sorry, we have not seen nor heard of this before.  Please make sure no water got inside the machine. Please make sure to not use purified, RO, nor distilled water as this can impact the sensitivity of the water sensors in the machine and give that beeping noise. If you are, please add some tap water and try to get through the grouphead and water wand.

  8. When I turn it on it immediately goes to the temperature select screen and the temp goes up and down like crazy and constantly beeps every second or so. I am sometimes able to click ok and pull a shot before is goes back to the select screen. Are you familiar with this issue? I have not found anything that could be causing the issue. This happens under "tea settings" the majority of the time. The machine gets hot.
  9. 0 votes
    Q When I turn it on it immediately goes to the temperature select screen and the temp goes up and d...... Read more answer now
    Asked by keith on March 31, 2021 1:15 pm
    Answered by the admin

    We have never seen this before in the three years in selling this machine. It sounds like a water issue. If purchased from us, please contact us with your order/invoice number for higher level technical support.

  10. Hi, I noticed today that my Bezzera Matrix DE espresso machine has a slow leak from the front bottom of the machine near the drip tray drain valve. The leak is a pretty constant drip while the machine is pulling a shot but the leak flow increased significantly during a backflush. It seems like it could possibly be from the drain valve connection or maybe the group head connection above that; I had difficulty trying to identify the source of the leak without dismantling the machine. Would you be able to advise how to proceed with a fix/repair?
  11. 0 votes
    Q Hi, I noticed today that my Bezzera Matrix DE espresso machine has a slow leak from the front bot...... Read more answer now
    Asked by colin on January 11, 2021 6:37 pm
    Answered by the admin

    Sorry for the delay in our response as this request was found in la-la land. We are unsure if you are referring to the grouphead valve which normally leaks after extraction, or the OPV which leaks during extraction, or an internal leak. If purchased from 1st-line, please email us pictures of where the leak is occurring. If purchased elsewhere, please contact your selling dealer as the selling dealer is responsible for service.

  12. Hi there! I recently purchased a new Bezzera Matrix DE from 1st Line and so far I'm loving the new machine! I had a few post-purchase questions I was hoping you'd be able to help me answer: The water level meter only seems to stay on the 3rd filled in bar out of the 4 level bar. Is there anything I need to do with the water to make the water level meter read correctly? How do I remove the reservoir or drain the machine if I need to? Is there a water filter in the machine that I need to replace? If so, do you sell the replacement water filter and have installation instructions?
  13. 0 votes
    Q Hi there! I recently purchased a new Bezzera Matrix DE from 1st Line and so far I'm loving the ne...... Read more answer now
    Asked by Colin on August 6, 2020 8:43 pm
    Answered by the admin

    The fill level on the touch screen is to show the water level of the steam boiler as indicated in the instructions.

    Currently, there is no water filter/softener provided by Bezzera. We do have the Oscar osmotic packs to soften water.

  14. Could you tell me if it is possible to get shorter feet on this machine? Also, how much additional space could be saved if the cup rail can be removed? I'm looking at putting this in a bit of a short space under a cabinet and would like to know how short the overall height could be with the rails off and short feet. Thank you!
  15. 0 votes
    Q Could you tell me if it is possible to get shorter feet on this machine? Also, how much additiona...... Read more answer now
    Asked by David Roman on May 20, 2020 7:13 pm
    Answered by the admin

    We do have special feet that can lower the unit to about 14 1/4" WITHOUT the side rails With these special feet, which we only sell with the purchase of the unit from 1st-line, the height with the rails is about 16".

  16. 1. Is there a way to shut off the hot water boiler and leave on the steam boiler? I use the milk steamer daily, but never use the hot water dispenser. 2. At what point should I replace the screen and rubber gasket in the group head?
  17. 0 votes
    Q 1. Is there a way to shut off the hot water boiler and leave on the steam boiler? I use the milk ...... Read more answer now
    Asked by Jack Douglas on April 25, 2020 2:53 pm
    Answered by the admin

    The steam boiler is where the how water comes out of. Hence, the steam boiler can be turned off through the display.

    The gasket and screen should be replaced every 12-24 months under light home use. Commercial use requires every 6-12 months.

  18. The G 1/8" connection at the bottom for the water supply, that is different than the standard water supply at a sink, correct?
  19. 0 votes
    Q The G 1/8" connection at the bottom for the water supply, that is different than the standard wat...... Read more answer now
    Asked by Don Kelly on April 18, 2020 7:41 pm
    Answered by the admin Yes, it is usually BSPP.
  20. Hi I am considering of upgrading my Siemens EQ9 fuldautomatic espressomachine to a better one, which makes better tasted espresso and where I can be a barista if I want to, but also do it in a more manually way. I am looking at the Bezzera Matrix DE (with bezzera group head and 3 PID's and LED display) I am from Denmark, so I know that I can't buy from Your store, and the machine doesn't match 230 volt, that we have in Denmark. But the problem is that I couldn't find that much customers reviews about this products. So for that reason I am asking you, to get some advice about this products. I have been watching your youtube channel, and like that. So keep up the good work and reviews and test about products. I am looking for a very good machine, which is reliable and makes very great tested espresso and other milk based drinks too. And I thinks this machine looks cool too, with the LED light etc. Are this machine as good as other brands, like ECM, Rocket, Profitec etc. Are the Bezzera Grouphead as good or even better then an ordinary E61 Grouphead? How long would it take for heating up this machine ready to brew? Have there been any problems/complaints about this product, and if so, what kind of problems? I know that this machine have a preinfusion function for between 1-4 seconds. But does it work well, like doing it manually, and does is mean something to the coffee and the taste of it? I am considering of connection to direct water and drain with a BWT Flex Head and a BWT Best Protect V filter. Do this machine need some kind of water pressure regulator within between the waterline, so the water pressure wouldn't be too high in volume, to prevent it from damage and leak? And also for a better preinfusion? Is 1 bar the way to go or? Are there anything else to be aware of, to protect this machine in the very best way? How long can it last before go to service with it? I have also been considering 3 different models of Espresso grinders, because I know that they are very important if not the most important, in the brewing process and the taste of the coffee as well. I am considering of these 3 models: Mazzer mini A or B Eureka ATOM Speciality 65 or 75 CEADO E37J Current I mostly go with CEADO in mind. I know they are more expensive, but I think, and have heard, that they are a very good proff quality, and would last for very, very long time. hope you understand my intention with my inquiry. Best regards Filip Denmark
  21. 0 votes
    Q Hi I am considering of upgrading my Siemens EQ9 fuldautomatic espressomachine to a better one, w...... Read more answer now
    Asked by Filip on April 2, 2020 5:33 pm
    Answered by the admin

    Thank you for watching our videos. We are very sorry that we can not answer your questions. Since you are outside the USA, please understand:

    a) The machines in Europe under 220 volts work differently than the machines made for the USA.

    b) Each model you listed may work better or worse, may be more reliable or worse, etc. in Europe compared to the USA.

    c) We are not familiar with your water, so we would be taking a guess for the system that you need.

    d) We do not know the service levels or parts availability in your country, and this could impact your decision.

    Based on all this, it is in your best interest to contact selling dealersin Europe  that can ship to you and answer all your questions, including the topics above. For us to answer as stated above, it is not in your best interest.

  22. Is the CE approval equal to NSF, and is it physically marked on the chassis?
  23. 0 votes
    Q Is the CE approval equal to NSF, and is it physically marked on the chassis? answer now
    Asked by Geoff on February 14, 2020 6:16 pm
    Answered by the admin

    CE is not equal to NSF. Each country typically has their own certification standards, and these standards differ. The Bezzera Matrix espresso machines, at the time of this writing, are not UL, ETL nor NSF approved. If and when these machines are, we will update our web pages accordingly.

  24. In that case - can I program one of the pre-set push button for 1-2 second ( to operate the pump) for real pere-infusion, and then push the other pre-set button to make the coffee I want? Since this machine is program control - the machine can do real pre-infusion by operating the pump for 1-2 second then wait for the pre-infusion chosen time before start making the coffee - It should be very simple to program. Wonder why the manufacturer didn't do it - It is a very strong selling point as well
  25. 0 votes
    Q In that case - can I program one of the pre-set push button for 1-2 second ( to operate the pump)...... Read more answer now
    Asked by Shimon Braff on July 24, 2019 4:21 pm
    Answered by the admin

    The programmable pre-infusion is the same for all buttons. Hence, pressing one dosage button, then the second would have pre-infusion twice.

Send me a notification for each new answer.