---
title: AJAX Security Outdoor Black 4MP WiFi Video Doorbell with PIR & AI
date: 2025-09-25T11:39:20Z
modified: 2026-05-20T12:01:39Z
permalink: "https://tech.co.za/product/ajax-security-outdoor-black-4mp-wifi-video-doorbell-with-pir-ai/"
type: product
status: publish
excerpt: 4MP Camera, PIR Sensor, IR up to 6m,Wi-Fi , Two-way Audio, AC/DC PSU, Built-in Backup Battery
wpid: 552424
product_brand:
  - AJAX
product_type:
  - simple
product_visibility:
  - featured
product_cat:
  - Security
featured_image: "https://tech.co.za/wp-content/uploads/2025/09/17123.webp"
---

The Ajax 66391.125.BL1 is a high-quality 4MP video doorbell designed to enhance security and communication at your doorstep. Featuring built-in AI for object recognition and precise motion detection, it ensures a reliable and clear view of your front entrance, whether you’re at home or away.
Key features:

Built-in AI Object Recognition: Detects and recognises people, animals, and vehicles with high accuracy.
Clear Two-Way Audio: With noise suppression and echo cancellation for crisp conversations.
Motion Detection: Equipped with a PIR sensor for precise detection and adjustable sensitivity.
Enhanced IR Illumination: Provides clear video feed at night, with up to 6m (20 ft) range.
Chime Functionality: Integrates with Ajax sirens to notify you of visitors or intrusions.
Wide HDR Camera: Offers excellent video quality, even in challenging lighting conditions.
IP65 Weatherproof: Designed to withstand outdoor conditions, ensuring durability and reliability.
Enhanced Wi-Fi Connectivity: Operates at distances of up to 500m (1,600 ft) in line of sight for seamless performance.
Instant Access to Live Stream: View your doorstep in real-time and navigate smoothly through archives.