Acaia Lunar – Espresso Scale with Flow Rate Indicator, Bluetooth and USB-C
Buy the Acaia Lunar in Switzerland: a flat aluminium espresso scale with 0.1 g resolution and a real-time flow rate indicator. At Coffee Coaching Club in Bern and Zurich.
The Lunar sits on the drip tray, starts the timer with the first drop and shows time, weight and flow during the shot. The housing is water-resistant anodised aluminium, 15 mm high and 105 × 105 mm in size. Acaia describes it as an espresso scale for commercial use that fits on espresso machines. Coffee Coaching Club is the official Swiss importer of Acaia.
Features of the Acaia Lunar
Colours
Besides Black, the Lunar comes in Space Gray and Beige-White. All three colours are available from us.
Fast and sensitive
With Acaia's current weighing technology, the reading stabilises faster during the shot. Your workflow at the machine stays smooth.
Real-time flow rate indicator
The display shows the flow rate of the shot while it runs. This lets you see subtle changes in the extraction and adjust grind size or dose with intent.
Adjustable espresso modes and Tare Save
Built-in espresso modes start and stop the timer or tare automatically. With Tare Save you store the empty weight of your dosing cup or your cup.
Charging via USB-C
According to Acaia, the lithium-ion battery lasts 30 to 40 hours of continuous use, depending on brightness and settings. It charges via USB-C with PD support.
Readability down to 0.01 g
The standard is 0.1 g. Optionally, the Lunar displays 0.01 g, an additional digit as a reference for espresso weight.
At a glance
| Model | Lunar (current generation with USB-C, models AL008 / AL009 / AL010 / AL012 / AL013) |
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| Dimensions (W × L × H) | 105 × 105 × 15 mm |
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| Weight | 265 g ± 5 g |
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| Maximum capacity | 2000 g |
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| Readability | 0.1 g, optionally 0.01 g |
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| Repeatability | 0.1 g |
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| Units | g, oz |
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| Display | 8-digit LED display with flow rate indicator |
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| Functions | Espresso modes with auto timer and auto tare, Tare Save |
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| Connectivity | Bluetooth 5.0, Acaia app |
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| Battery | Li-ion 3.7 V, 1100 mAh, 30–40 hours of continuous use |
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| Charging | USB-C, 5 V / 500 mA |
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| Material | Aluminium (anodised, water-resistant), acrylic |
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| Colours | Black, Space Gray, Beige-White |
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| Included according to Acaia | Lunar, heat-resistant pad, 2 anti-slip and 2 anti-skid strips, USB-C cable, 100 g calibration weight, sticker set |
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| Care | Only with a soft cloth and warm water, no cleaning agents |
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Lunar on the La Marzocco Linea Mini R
Since 23 March 2026, a Lunar with a USB-C port and a serial number from AL008 onwards can be upgraded to the La Marzocco Connected Scale with a paid licence. The process starts in the La Marzocco app (version 1.7.0 or later), and the licence and firmware come via the Acaia app. The machine needs a gateway firmware update for this.
La Marzocco lists the Linea Mini R, the Linea Mini with connected board and the Pico grinder as compatible. According to La Marzocco, older Lunar scales with a Micro-USB port are not compatible. The upgrade is an option, not a requirement: without a licence, the Lunar works on any machine as a standalone scale. You will find the machines and the grinder in the La Marzocco collection.
Who the Lunar is made for
For everyone who brews espresso by weight and wants to see the flow during the shot. The Lunar works independently of the machine and, at 15 mm high, fits even where there is little space under the spout. We start with a 1:2 ratio and adjust to taste. Our opinion is one of many.
For everyone who wants an affordable and precise scale: the Normcore scales. If you want an app, a flow rate indicator and Bluetooth: the Acaia scales, including the larger Pearl for filter coffee.
Matching grinders: for everyone who wants to grind affordably and precisely, the Varia VS3 from our Varia collection or the Comandante C40 hand grinder from the Comandante collection. If you want more: the Varia VS6 or the EG-1 from the Weber Workshops collection. You will find machines in the coffee machines collection.
Not sure which setup suits you? The advice tool narrows down the choice, and a consultation appointment is free of charge. In the comparison workshop in Zurich, you can test machines, grinders and scales side by side during a reserved hour. An option, not a requirement.
Delivery in 2–4 working days, throughout Switzerland and to Liechtenstein. Click & Collect in Bern, Gerberngasse 44 and Zurich, Hagenholzstrasse 50b. Questions to [email protected] or by phone during business hours.
Frequently asked questions
What is the difference between the Acaia Lunar and the Acaia Pearl?
The Lunar is built for espresso: 105 × 105 × 15 mm, aluminium housing, fits on the drip tray. At 160 × 160 × 32 mm, the Pearl is larger and intended for filter coffee and pour-over. Both have a 2000 g capacity, Bluetooth 5.0 and the Acaia app.
Does the Acaia Lunar work with every espresso machine?
Yes. The Lunar works on its own and needs no connection to the machine. It fits on any drip tray with 105 × 105 mm of space, and its height is 15 mm.
Can I connect the Acaia Lunar to the La Marzocco Linea Mini R?
Yes, since 23 March 2026 with a paid licence. This requires a Lunar with a USB-C port and a serial number from AL008 onwards. The upgrade starts in the La Marzocco app and is completed in the Acaia app. According to La Marzocco, the Linea Mini R, the Linea Mini with connected board and the Pico are compatible. Older Lunar scales with Micro-USB are not compatible.
What does the optional 0.01 g readability mean?
The standard is 0.1 g. Optionally, the Lunar shows an additional digit down to 0.01 g as a reference for espresso weight. Acaia specifies the repeatability as 0.1 g.
How long does the Lunar battery last?
According to Acaia, 30 to 40 hours of continuous use, depending on brightness and settings. It charges via USB-C.
Can I see the Acaia Lunar before buying?
Yes, in our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b). The display changes, so drop a quick note to [email protected] beforehand.
Tip from the roastery: For the Lunar at the machine, we mainly roast Cozy Chocolate and Nutty Delight: full-bodied, round, with chocolate and nut. If you want maximum body without acidity, reach for Very Nutty. For those curious about a fruity experience, there is Wild Peach. That is our recommendation, one of many.
