Acaia Lunar Scale

Out of stock

Designed for espresso machine drip trays, the Acaia Lunar™ is aesthetically functional for your weighing needs. The espresso scale is built with anodized aluminum. Its electronic parts inside and the LCD display are fortified with a water-resistant spray to prevent water damage.

With an ultra-fast response time and high accuracy, you'll be able to track consistency across all of your espresso shots.

One heat pad and one 100 g calibration weight come with each Lunar. The Lunar also includes a 2-year limited manufacturers warranty, which includes water damage.

Manufacturer Warranty.  Please register your scale after purchase. If your scale breaks due to normal use, please follow the manufacturer warranty instructions. Acaia Lunars that are purchased in the US and shipped or taken out of the country have a 2-year limited warranty. To submit a warranty claim please visit the manufacturer's warranty claim site

Espresso Parts Return Policy: If for any reason you decide that your purchase was not for you, then you can return your purchase within 30 days of receipt. Espresso Parts will gladly accept all unused and like-new condition for a return. All merchandise must be unused, like-new condition, and returned in its original packaging. Learn more on our return policy page

Espresso Parts Guarantee: We guarantee a full refund or replacement of all defective products at no additional cost to you. Most electrical items have specified limited manufacturer warranties.

More Information
Manufacturer Acaia

    Against standard cafe wear and tear.


    Readability up to 0.1 g and an optional resolution 0.01 g. The Acaia Lunar is sensitive to even weight changes resulting from evaporation and temperature.


    In various modes, the Lunar can automatically tare, start, and stopRECHARGEABLE USB POWER SUPPLY


    A greener alternative power source, the lithium ion battery lasts 20-30 hrs.


    Bluetooth-enabled to sync with our apps.


    The scale receives periodic firmware updates, which are available through our free Lunar Updater app.

Model No

AL001/ AL006


105mm(W) x 105mm(L) x 15.5mm(H)/
4.13in(W) x 4.13in(L) x 0.61in(H)




4.4lbs / 2kg
Max: 2000g Min: 0.1g

Measuring Units


Permissible Error Range







Lithium ion, USB Rechargeable


Bluetooth 4.0


Anodized aluminum, Acrylic (display)


2 Year

Inside the 

Acaia Lunar Scale ( Silver / Black) x 1,
Micro-USB cable x 1,
Acaia 100g calibration weight x 1,
Lunar heat resistant pad (black) x 1 

Limited Warranty:
For acaia products purchased and used only within the US, acaia Corp warrants them to be free of defects in materials and workmanship for a period of one (1) year from the date of purchase. This warranty does not apply to: improper use, lack of cleaning, water damage, accidental drop, abuse, normal wear and tear, lack of proper care.

Within the United States: if your acaia scale fails within one year of date of purchase, simply e-mail us at []. Please have the following information prior to contacting acaia: 1) Proof of date of purchase. 2) Model and serial number (located on bottom of the acaia Scale. acaia will contact you to determine the problem, and see if it can be fixed quickly and easily. If the problem cannot be solved via e-mail and the problem is determined by acaia to be a Warranty issue, then acaia will deliver an identical or comparable replacement to your door, free of charge, and arrange to have your "failed” acaia scale returned to us. When you receive your replacement acaia, use the carton and packing material and shipping label to return your "failed” acaia scale by dropping it off at the designated pickup location. Please include your name, phone number and address inside the box.

4.44 Average

9 Reviews

Susan Beauchamp

The scale is a Christmas gift, which won't be given until Christmas. All I can say right now was that it was shipped and received in a very timely manner.


We ordered two of these for our Linea Classic with 3 espresso portafilters. They work great and we love the auto-tare and auto-timer count so that we can keep a good track and make sure we are pulling a consistent espresso every single time. So far we have had no problems whatsoever. The manual and app are very helpful in understanding the device and its features. We also have the "big brother" scale to the Acaia Lunar to way out our grind before we pull the shot. All in all a great buy and great scales!


I bought this balance a few weeks ago and I’m amazed by this product. Perfect my coffee shots until I always have consistency, so my espressos are always similar, I recommend it.


I love this scale for its speed, accuracy and durability. My staff has an uncanny ability for breaking things, and this scale has passed the test. It's incredibly accurate, which can cause it to be sensitive when placed on unstable or vibrating surfaces. We normally use a fridge for our counter space, which caused the scale to be unstable, but the problem was solved by placing it just a couple of feet away on an anchored countertop. The only issue I have is that it can be very confusing to operate without instructions. During the first week we experienced a lot of frustration not knowing how to change the settings and wondering why the values kept changing. Customer Support was very helpful and pointed us to their online user guide. (Why would they not include it with the product?) My baristas had set this scale aside and stopped using it until I arrived because the could not understand how it worked, despite the instructions I had given them. If the controls were easier to use, would they have understood it better? Overall, it's a great product. I get giddy just thinking about it.


The is technically and esthetically a beautiful designed digital scale for the home or professional barista. I love the auto-tare/start/stop feature. Checkout the 'tips' on the Acaia website for setup of the auto features.. the manual is not as complete as it could be. I have only owned this product for a few weeks but I trust it will last for many years.


On the one hand, this is an expensive scale. On the other, it is an exceptional product. It works wonderfully and should do so for a long time thanks to features like: being well built; being waterproof; coming with a nifty little rubber cover; etc. Frankly if I had not used one before looking at the scale, I would almost certainly not have paid that much for it. However, it is worth it. One point of note: This scale can be calibrated by a home user. It also comes with its own 100g calibration weight. A key feature of this scale is what I call the automatic timer start feature. You set it in the appropriate mode and the scale starts the timer once the liquid hits the cup. I've not seen this feature in any other scale. I use this scale on my espresso maker and use the pearl to weigh out my portafilter (with ground coffee). This allows me to focus less on resetting a single scale. Yes having both is even more expensive. I think it is worth the price. So the accuracy of the scale should remain in tact if calibrated regularly. If you are serious about your expresso, you should seriously consider this product.


I struggled for a long time to find a reason to spend this much on a scale. And so I didn't. The scale I had worked; it was slow, it didn't really fit on the drip tray, it was of questionable waterproofness. Designed for pour over it just wasn't the right tool for espresso. So I finally ordered the Lunar and I'm very glad I did. It's compact form factor fits (just barely) on the drip tray of my Rocket R58 without needing to do a balancing act. It's amazingly responsive and very accurate. I ordered mine with the portafilter plate and I very quickly transition from weighing beans to weighing the dosed portafilter to weighing the extraction very naturally. The iPhone app is excellent as well. For espresso you can record your extraction and see flowrate over time. For pour over it has a remote scale feature so you can time and weigh your extraction even when the gauges are blocked. A very convenient way to work around the small form factor. This is a fantastic tool that now having used for a couple months points out exactly how frustrating my previous scale was to use. Being so easy to use I use it now every shot and the consistency of my drinks has improved tremendously. Highly recommended accessory for any home or professional barista.


An excellent design, this scale is lightning fast and very accurate. It speeds up and simplifies my work. Switching very quickly from accurately weighing coffee in a heavy portafilter to moving it to the machine for weighing shots in a cup requires no more effort than tapping the 'tare' button. The shot timer is also nice.