# Wireless doorbell button AJAX DoorBell (black) model 66391.125.BL1

**URL:** https://aio.lv/en/product--ajax-66391125bl1--11505025
**Data updated:** 2026-03-31 13:05 (EEST)
**Category:** Control Systems
**Manufacturer:** Ajax
**Manufacturer code:** 66391.125.BL1
**EAN:** 4823114066146
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 270.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 223.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ajax-66391125bl1--11505025

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.89 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

AJAX DoorBell is a wireless doorbell button in black, model 66391.125.BL1. Designed to signal visitors at entry points, it integrates with compatible AJAX systems or functions as a standalone transmitter. The compact button offers easy wall or surface mounting and reliable wireless signaling to a control unit, simplifying visitor notification for homes and small offices.

## Long description

AJAX DoorBell (black) model 66391.125.BL1 is a compact wireless doorbell button designed to notify occupants of visitors at entrances. The device transmits a wireless signal to a compatible AJAX control unit or can operate as a standalone transmitter where integration with a broader system is not required. Its slim, black housing and simple push-button make it suitable for home and small office entry points, offering straightforward wall or surface mounting and low-maintenance operation.
Advantages
The AJAX DoorBell provides reliable wireless signaling and a simplified setup process without visible wiring. Its low-profile black enclosure resists visual intrusion while remaining easy to operate for visitors. The device is designed for energy-efficient performance, enabling long battery life and consistent transmission range suitable for typical residential and small commercial environments. Installation requires minimal tools and allows flexible placement on door frames, walls, or other mounting surfaces.
Suitable for
 Front doors and back doors of private homes
 Entry points in small offices and reception areas
 Garages, workshops, and secondary entrances
 Temporary or semi-permanent installations where wireless transmission is preferred
Key specifications
 Form factor: compact wall-mounted wireless button
 Color: black housing
 Operating principle: wireless transmitter for doorbell signaling
 Mounting: surface or wall mounting with simple fixings
 Compatibility: works with compatible AJAX control units or as a standalone transmitter
 Power: battery-powered for installations without hardwiring
 Durability: designed for regular outdoor or indoor use at entry points
How to use
Mount the AJAX DoorBell at the desired entrance height using the included or appropriate fixings, ensuring the button is easily accessible to visitors. Pair the transmitter with the compatible control unit following the unit’s pairing procedure, or position the device within range of the receiver when used standalone. After installation, test the signal and adjust placement if necessary to achieve reliable transmission. Replace batteries according to the control unit’s battery status indications or manufacturer guidance to maintain continuous operation.
Usage recommendations
Install the device in a sheltered location protected from direct exposure to heavy rain or extreme weather where possible, and avoid placing it near large metal structures that may reduce wireless range. Regularly check battery status and test operation after installation or after any changes to surrounding structures to ensure consistent visitor notification.

## FAQ

### How much does the AJAX DoorBell wireless doorbell button 66391.125.BL1 cost, and is it available for purchase?

The price is 270.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 08.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can AJAX DoorBell wireless doorbell button 66391.125.BL1 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Ajax 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 Ajax 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/11505025/66393560_large.webp