# Ajax Doorbell Black Wireless 4 MP Night Vision 2.4 GHz

**URL:** https://aio.lv/en/product--ajax-66391125bl1--11534265
**Data updated:** 2025-09-06 12:55 (EEST)
**Category:** Control Systems
**Manufacturer:** Ajax
**Manufacturer code:** 66391.125.BL1
**EAN:** 4823114066146
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 274.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 227.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ajax-66391125bl1--11534265

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Ajax Doorbell Black features a wireless connection, 4 MP video resolution, and night vision up to 44 m. Powered by a 600 mAh lithium-ion battery, it is compact and easy to install.

## Long description

The Ajax Doorbell Black Wireless 4 MP Night Vision 2.4 GHz is a compact smart video doorbell with built-in AI, a PIR motion sensor, and app-based control. It delivers 4 MP HDR video, instant two-way audio, and night vision up to 44 m. The device supports Ajax Cloud Storage for secure event recordings, offers fallback communication when connected to an Ajax hub, and includes a 600 mAh lithium-ion backup battery that provides up to two hours of operation after a power outage.
Advantages
DoorBell combines fast, low-latency live streaming with onboard AI to recognize people, animals, and vehicles and reduce false alarms via the integrated PIR sensor and configurable detection zones. JetSparrow technology ensures quick encrypted video delivery and smooth archive browsing, while extended Wi‑Fi range (up to 500 m line of sight) improves installation flexibility. The device supports ONVIF and RTSP for easy integration into third-party VMS and NVR systems, and all data storage and processing comply with EU data protection standards. Passwordless mTLS authentication and digital signature–verified video export enhance security and evidence integrity.
Suitable for
Residential front doors and apartment entrances
Small commercial premises requiring visitor verification
Deliveries and courier drop-offs where hands‑free notification is useful
Sites needing integration with existing IP cameras or NVRs
Key specifications
Brand: Ajax
Model: DoorBell Black (MPN 66391.125.BL1, EAN 4823114066146)
Video resolution: 4 MP with HDR
Connectivity: 2.4 GHz Wi‑Fi; Jeweller and Wings protocols when paired with an Ajax hub
Night vision range: up to 44 m
Motion detection: built‑in PIR sensor plus AI object recognition (people, animals, vehicles)
Backup battery: 600 mAh lithium‑ion, up to 2 hours runtime after power loss
Integration: ONVIF and RTSP support; Ajax Cloud Storage and Ajax NVR compatible
How to use
Mount the DoorBell using the supplied SmartBracket or wedge brackets at the entrance and connect it to your 2.4 GHz Wi‑Fi network. Add the device to your Ajax system by scanning the QR code in the Ajax app; the app guides you through network and detection zone configuration. When visitors ring or motion is detected, receive instant notifications and open the live video stream in the Ajax app for two‑way conversation. If DoorBell is paired with an Ajax hub, it will continue to send event notifications via the Jeweller and Wings protocols even if local network conditions change.
Usage recommendations
Install the doorbell at a height and angle that provides an unobstructed view of visitors while avoiding direct sun glare. Configure detection zones and sensitivity to minimize false alerts from traffic or pets. For reliable performance, use a stable 2.4 GHz Wi‑Fi network and place the router or access point to ensure good line of sight when possible; pairing with an Ajax hub provides an additional fallback communication channel.

## Specifications

| Feature | Value |
|---|---|
| Megapixel (approx.) | 4 MP |
| Weight | 0.163 kg |
| Wi-Fi standards | 802.11b, 802.11g, Wi-Fi 4 (802.11n) |
| Battery technology | Lithium-Ion (Li-Ion) |
| Power consumption (typical) | 10 W |
| Operating relative humidity (H-H) | 0 - 90 |
| Battery capacity | 600 mAh |
| Built-in microphone | Yes |
| Operating temperature (T-T) | -25 - 60 |
| Height | 145 mm |
| Width | 47 mm |
| Depth | 34 mm |
| Product colour | Black |
| Built-in speaker(s) | Yes |
| Indication light | Yes |
| Wi-Fi | Yes |
| Quick start guide | Yes |
| Maximum range | 500 m |
| Night vision | Yes |
| Maximum video resolution | 2688 x 1520 |
| International Protection (IP) code | IP54 |
| Power source type | Battery |
| Mounting kit | Yes |
| Night vision distance | 44 |
| Motion sensor | Yes |
| Smartphone/tablet remote support | Yes |
| Connection type | Wireless |
| Volume | 85 dB |
| Detection distance | 4 m |
| Wi-Fi frequency | 2.4 GHz |
| Warranty period | 2 year(s) |

## FAQ

### How much does the Ajax Doorbell Black cost, and is it available for purchase?

The price is 274.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 15.07.2026 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 Black 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/11534265/66549447_large.webp