# Wired Doorbell ORNO QUARTO AC two-tone with anti-block function OR-DP-MR-149/W

**URL:** https://aio.lv/en/product--orno-or-dp-mr-149w--12022018
**Data updated:** 2026-05-06 17:47 (EEST)
**Category:** Control Systems
**Manufacturer:** ORNO
**Manufacturer code:** OR-DP-MR-149/W
**EAN:** 5908254800658
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--orno-or-dp-mr-149w--12022018

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

ORNO QUARTO AC is a wired two-tone doorbell (model OR-DP-MR-149/W) designed for AC-powered installations. It provides distinct two-tone chimes and includes an anti-block function to prevent the switch from sticking. Suitable for residential or small commercial entrances where a reliable wired door chime is required, compatible with standard doorbell wiring.

## Long description

ORNO QUARTO AC two-tone wired doorbell (model OR-DP-MR-149/W) is a mains-powered door chime designed for permanent installation in residential and small commercial settings. The unit delivers clear two-tone melodies for visitor notification and integrates an anti-block mechanism to prevent the pushbutton switch from sticking. The device is compatible with standard AC doorbell wiring and intended for fixed installation where a reliable wired chime is preferred over wireless alternatives.
Advantages
The two-tone chime provides distinct, easily recognizable sound patterns so occupants can quickly detect a visitor. The anti-block function reduces the risk of the bell remaining continuously activated due to a stuck or jammed button, increasing reliability and reducing wear on the transformer and wiring. Being a wired, mains-powered unit ensures stable operation without the need for batteries, and the product is constructed to integrate with conventional doorbell circuits.
Suitable for
Private homes and apartments with standard AC doorbell wiring
Small offices, clinics, or shops requiring a permanent wired chime
Entrances where clear two-tone notification helps distinguish visitors
Installations that benefit from an anti-block function to prevent stuck buttons
Key specifications
Power supply: AC mains (designed for standard doorbell AC voltage)
Sound output: two-tone chime with distinct melody patterns
Anti-block feature: mechanism to prevent continuous activation from stuck button
Installation type: wired, fixed mounting suitable for indoor placement
Compatibility: works with standard doorbell pushbuttons and wiring configurations
How to use
Connect the doorbell unit to the building's AC doorbell circuit following the installation instructions and local electrical regulations. Mount the chime unit in a suitable indoor location where the sound can be heard clearly throughout the intended area. Connect the pushbutton at the entrance to the appropriate terminals and verify correct polarity and transformer rating if applicable. After wiring, test the two-tone chime and the anti-block function by operating the pushbutton to ensure the bell sounds and releases correctly.
Usage recommendations
For reliable long-term performance, ensure installation is performed or checked by a qualified electrician, verify compatibility with the existing transformer and pushbutton, and avoid exposing the chime unit to moisture or extreme temperatures. Periodic inspection of wiring and the pushbutton will help maintain proper operation of the two-tone chime and the anti-block mechanism.

## FAQ

### How much does the ORNO QUARTO AC two-tone wired doorbell OR-DP-MR-149/W cost, and is it available for purchase?

The price is 13.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All ORNO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ORNO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12022018/67510370_large.webp