Everything you need to get started with Libra.

SKU 1005 / WH-B37 · v2.0 · May 2026
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In this guide

Libra is a connected table scale that weighs and syncs the weight directly to the Tendy app over Bluetooth. Place it on a flat surface, turn it on and start weighing.

This guide covers setup, safety, daily use and what to do if something stops working.
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Batteries are not included.
Libra is powered by three AA batteries (1.5 V) that you insert yourself. We recommend using high-quality batteries. Read more in section 5.

Missing something from the box?
Contact [email protected] before using the device.

1. PCS - Counting function.

2. UNIT - Change unit of measurement.

3. TARE - Zero (tare).

4. ON/OFF - On/off.

5. Display - LCD with backlight.

6. Weighing plate - removable, stainless steel.

7. Battery compartment - on the underside, for three AA batteries.

8. Feet - keep the scale steady on the surface.

Intended use. Libra is a connected table scale for non-professional indoor use. It weighs, for example, game meat and syncs the weight to the Tendy app over Bluetooth. Any other use is outside the intended use.

Not for trade use. Libra is not intended to be used as a scale in trade where the price is determined by weight. It is therefore not a non-automatic weighing instrument for commercial use under Directive 2014/31/EU.​

Batteries
Libra is powered by three AA batteries (1.5 V). Insert the batteries in the correct direction according to the markings (+ and −) in the battery compartment. Do not mix old and new batteries, and do not mix different battery types or brands. Do not attempt to charge ordinary alkaline batteries. Remove the batteries if you are not going to use the scale for a long time, to avoid leakage. Dispose of used batteries at a battery collection point, not in household waste.

Service
There are no user-serviceable parts inside other than the batteries. For service, contact [email protected].
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Auto power-off. If the weight does not change and no button is pressed for 10 minutes, the scale turns itself off to save battery.
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Always make sure the scale is turned off before inserting or replacing batteries.

Replace batteries in time
When the display shows "LO", the batteries are nearly empty. Replace all three at the same time with new batteries of the same type.
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Libra weighs up to 30 kg. The accuracy is approximately 1 g between 0 and 15 kg, and approximately 5 g between 15 and 30 kg. For Libra to register a weight correctly, the minimum weight must be at least 25 g.
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When weighing loose items in a container, you can subtract the container's weight. Place the empty container on the plate, press TARE briefly so the display shows zero, then place the items inside. The scale will then show only the weight of the items.
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Press UNIT to cycle between five units: grams (g) to kilograms (kg) to pounds (lb) to ounces (oz) to millilitres (ml).

The PCS function counts the number of items based on the weight of a known quantity. It is useful when you want to count many small, identical items.

Two ways to end sampling.
Either automatically 10 seconds after you place the items, at which point the value is saved. Or by pressing ON/OFF to exit immediately, at which point the value is also saved.

If sampling fails. If the items are too light for the scale to distinguish between them, "Err4" is displayed and no value is saved. After a successful sampling, the value is stored until you perform a new one.
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Libra is calibrated at the factory and you normally do not need to recalibrate it. If weighing becomes inaccurate, you can recalibrate the scale using calibration weights. You will need weights of 10 kg and 20 kg.

Tip. Calibrate on a stable, flat surface and do not move the table during the process.
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The Tendy app pairs with Libra over Bluetooth. Once paired, the weight you measure is synced directly to the app.

Search for Tendy on Google Play or the App Store, or scan the QR codes below:

If you are not going to use Libra for a long time, remove the batteries and store the scale in a dry, cool place. This prevents the batteries from leaking and damaging the scale.
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Having trouble with your Tendy Libra? Start with the error codes below.

You can find more guides and answers on the Tendy Libra support page HERE.

Still can't get it sorted?
Email [email protected] and we'll help you.
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Cybersecurity (RED 3.3 d/e/f)
Libra does not connect to the internet and does not store any personal data on the device. Bluetooth pairing requires user confirmation in the Tendy app. Any firmware updates are signed and delivered via the app. Libra is designed to comply with the standards in the EN 18031 series under RED Articles 3.3(d), (e), (f).

The complete technical documentation as well as EMC and radio test reports are held by Tendy AB and can, upon reasonable request, be made available to competent authorities via [email protected].

Simplified EU declaration of conformity in accordance with Article 10(9) of Directive 2014/53/EU. The full DoC is available on the Tendy website here: https://support.tendy.se/sv/articles/14893772-libra-declaration-of-conformity.

EN. Hereby, Tendy AB declares that the radio equipment Tendy Libra is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: tendy.se/doc/libra

SV. Härmed försäkrar Tendy AB att denna typ av radioutrustning Tendy Libra överensstämmer med direktiv 2014/53/EU. Den fullständiga texten till EU-försäkran om överensstämmelse finns på: tendy.se/doc/libra

NO. Tendy AB erklærer herved at radioutstyret av typen Tendy Libra er i samsvar med direktiv 2014/53/EU. Den fullstendige teksten i EU-samsvarserklæringen er tilgjengelig på: tendy.se/doc/libra

DA. Hermed erklærer Tendy AB, at radioudstyrstypen Tendy Libra er i overensstemmelse med direktiv 2014/53/EU. EU-overensstemmelseserklæringens fulde tekst kan findes på: tendy.se/doc/libra

FI. Tendy AB vakuuttaa, että radiolaitetyyppi Tendy Libra on direktiivin 2014/53/EU mukainen. EU-vaatimustenmukaisuusvakuutuksen täysimittainen teksti on saatavilla osoitteessa: tendy.se/doc/libra

DE. Hiermit erklärt Tendy AB, dass der Funkanlagentyp Tendy Libra der Richtlinie 2014/53/EU entspricht. Der vollständige Text der EU-Konformitätserklärung ist verfügbar unter: tendy.se/doc/libra

PL. Tendy AB niniejszym oświadcza, że typ urządzenia radiowego Tendy Libra jest zgodny z dyrektywą 2014/53/UE. Pełny tekst deklaracji zgodności UE dostępny jest pod adresem: tendy.se/doc/libra

FR. Le soussigné, Tendy AB, déclare que l'équipement radioélectrique du type Tendy Libra est conforme à la directive 2014/53/UE. Le texte complet de la déclaration UE de conformité est disponible à : tendy.se/doc/libra

ES. Por la presente, Tendy AB declara que el tipo de equipo radioeléctrico Tendy Libra es conforme con la Directiva 2014/53/UE. El texto completo de la declaración UE de conformidad está disponible en: tendy.se/doc/libra

IT. Il fabbricante, Tendy AB, dichiara che il tipo di apparecchiatura radio Tendy Libra è conforme alla direttiva 2014/53/UE. Il testo completo della dichiarazione UE di conformità è disponibile al: tendy.se/doc/libra
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Electronic waste. The symbols on the product, its accessories or packaging indicate that the device must not be handled as unsorted household waste, but must be collected separately. Hand in the device at a collection point for recycling of electrical and electronic waste (WEEE) if you live within the EU or in other European countries that have separate collection systems for such waste. By disposing of the device correctly, you help prevent possible risks to the environment and human health that could otherwise arise from improper waste handling. Recycling materials helps preserve natural resources.

Recycle the packaging separately in accordance with local regulations. Sort cardboard with paper, plastic film with plastic and any metal parts separately.
In France, the Triman logo and the Info-Tri sorting guide apply to the packaging.
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Standard warranty.
Tendy AB warrants Libra against defects in materials and workmanship for 12 months from the date of purchase, provided normal use and compliance with the conditions in this guide. Keep your receipt as proof of purchase.

What is covered.
Manufacturing defects that affect normal function. We will repair the product, replace it or issue a refund at our discretion.

What is not covered.
Damage from accidents, drops, liquids, unauthorised repairs, normal wear and tear, leaking batteries or use outside the intended use described in section 3.
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This warranty does not affect your statutory rights as a consumer under EU law and national law. Some markets give you stronger rights than our standard warranty:

In all cases, the longer of the two periods applies. To initiate a case, email [email protected] with your order number and a brief description.
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Tendy AB
Roslagsgatan 32 · 113 55 Stockholm · Sweden
Org.nr 559477-9778
​[email protected]
​tendy.se