Connecting scale > [HTML Version](pripojenivah.html) Dotypos touch cash registers can also be connected to both classic scale via cable and small mobile wireless Bluetooth scales which can be used for [weighted stocktaking](inventuravazenainventura.md#vazena_inventura). The cable connection of the scale can be certified. Classic (big) scales, connectable by cable, are connected to the [10" and 15" cash registers](sestaveni-a-zapojeni-pokladen.md). Wireless Bluetooth scales can be connected to all offered cash registers. Both types of cash registers support the Bluetooth connection. [Connecting and configuring a scale (RS232)](cert-pripojeniakonfiguracevahyrs232.md) (certified connection) [Connecting and configuring a scale (RS232)](pripojeniakonfiguracevahyrs232.md) (non-certified connection) [Connecting a mobile Bluetooth and USB scale](pripojenibluetoothusbvahy.md) | | | |------|------| | [![Note](./images/poznamka.svg)] | For a certified connection, Dotypos supports non-automatic scales (NAWI) using the communication protocol Checkout-Dialogue#06 (ECR Type#12) via RS232 or USB interface. The scale must be marked with the conformity label CE. The scale must also have a display with indication of the weight, unit price and total price of the weighted item. A [customer display](zakaznicky-displej.md) connected to the cash register is therefore required. | | | | |------|------| | [![Warning](./images/upozorneni.svg)] | - Certified scale connection is a paid service and the scale and cash register connection must be sealed by a technician. After the above steps, it is therefore necessary to contact the manufacturer of the scale (which in the case of Dotypos s.r.o. scales is [LESAK s.r.o.](https://www.profivahy.cz)) at 775 873 570 (primary in the Czech language) and arrange a visit of a technician who will perform the sealing. You will also be able to obtain information on the fee for this service by calling the above-mentioned telephone number. Dotypos company does not verify the connection of the scale or intervene with the customer.
- The whole certification procedure from LESAK s.r.o. is presented in [this document](https://manual.dotykacka.cz/dokumentace/Postup-pro-propojení-LESAK-a-Dotykačka-2023.pdf) (in the Czech language).
- If you do not have a scale from Dotypos, please contact your scale supplier or dealer directly for a certified connection.
- The maximum unit or total price (quantity x unit price) of the weighted item is **CZK / EUR 9,999.99**. Sales above this amount are not possible in certified (Welmec) mode. | top