# BELL GNS-921 BIM-BOM doorbell chime unit by ZAMEL GNS-921-BIA/WHIT

**URL:** https://aio.lv/en/product--zamel-gns-921-biawhit--4910409
**Data updated:** 2026-05-06 17:49 (EEST)
**Category:** Control Systems
**Manufacturer:** ZAMEL
**Manufacturer code:** GNS-921-BIA/WHIT
**EAN:** 5903669002215
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-gns-921-biawhit--4910409

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

BELL GNS-921 BIM-BOM is a wired doorbell chime unit from ZAMEL (model GNS-921-BIA/WHIT). It provides audible signaling for entrance doors and interior use. Designed as a chime module, it integrates with doorbell pushbuttons and building wiring to produce the BIM-BOM sound pattern. Suitable for residential or small commercial installations requiring a compact acoustic signaling device.

## Long description

BELL GNS-921 BIM-BOM is a wired doorbell chime unit by ZAMEL designed for audible signaling at entrances and inside buildings. The compact chime module connects to standard doorbell pushbuttons and building wiring to produce a distinct BIM-BOM two-tone sound pattern. Intended for residential and small commercial installations, the unit mounts in a wall or flush box and delivers clear acoustic notification without external speakers.
Advantages
The unit provides a clear two-tone BIM-BOM chime that is easily recognized at entrances. Its wired design ensures reliable operation without batteries or wireless pairing. The compact enclosure and neutral finish allow discreet installation in a variety of interiors. The chime is compatible with common doorbell pushbuttons and standard low-voltage doorbell wiring, simplifying replacement or upgrade tasks.
Suitable for
Residential entrance doors and interior rooms
Small offices and retail premises
Multi-door setups requiring a simple chime sound
Upgrades or replacements of existing wired doorbell chimes
Key specifications
Acoustic output: BIM-BOM two-tone chime pattern
Power: wired low-voltage doorbell supply (connects to standard doorbell transformer circuits)
Mounting: wall or flush-box installation
Finish: neutral light color suitable for interior use
Application: indoor use for entrance signaling in homes and small commercial buildings
How to use
Install the chime module in a suitable wall location or flush box following local electrical regulations. Connect the unit to the doorbell transformer and pushbutton circuit using the building’s low-voltage wiring, ensuring power is disconnected during installation. After wiring, restore power and test the pushbutton to confirm the BIM-BOM sound pattern. Adjust placement to ensure audibility in the desired coverage area.
Usage recommendations
For reliable operation, use with a compatible low-voltage doorbell transformer and standard pushbutton contacts. Ensure wiring connections are secure and protected from moisture. When replacing an existing chime, verify voltage and wiring configuration before installation to avoid compatibility issues.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.273 kg |

## FAQ

### How much does the ZAMEL BELL GNS-921 BIM-BOM doorbell chime cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2058 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 09.07.2026 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 ZAMEL 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 ZAMEL 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/4910409/30586534_large.webp