How to detect intruders instantly with AJAX sensors and integrated camera

Optimise the protection of your spaces with the AJAX AJ-MOTIONCAM-B sensor. From its internal design to compatibility and use cases, this guide offers everything you need to know to integrate a motion detector with a camera into your AJAX system.

Index

• Anatomy of the AJAX sensor
• Main features
• Technical specifications
• Applications and return on investment (ROI)
• Certifications and standards
• How to choose the optimal sensor
• Frequently Asked Questions (FAQs)

1. Anatomy of the AJAX sensor

In this section we break down each of the elements that make up the AJ-MOTIONCAM-B, so you can understand how they work together:

• PIR Lens : 24-zone, 6-plane system that detects thermal and motion variations.
• VGA Camera : Captures up to 640 × 480 px, with night mode thanks to infrared lighting.
• Internal antenna : Enables bidirectional communication at 868 MHz (Jeweller) and Wings for sending images.
• Indicator LEDs : Indicate alarm, tamper (anti-opening) and signal status.
• Battery compartment : Two CR123A 3V batteries, with an estimated autonomy of up to 4 years.
• Tamper anti-opening : Device that alerts if someone tries to tamper with the sensor from behind.
• ABS casing : Durable and discreet material, finished in matte black.

2. Main features

This section summarises at a glance the key points that make the AJ-MOTIONCAM-B a standout option:

• Volumetric PIR photodetector immune to pets up to 20 kg.
• Security level 2, certified for environments with medium risk.
• Bidirectional and wireless, with a range of up to 1,700 m in open space.
• Send up to 5 images per detection in less than a minute.
• Coverage field of 12 m horizontal (88.5°) and vertical (80°) range.
• Adjustable sensitivity in three levels: low, medium and high.
• Compatible with AJAX Hub 2 for integration into automations and notifications.

3. Technical specifications

4. Applications and return on investment (ROI)

• Residential housing
  Easy, wireless installation with visual and photographic alerts. Savings in installation and maintenance compared to wired systems.
• Offices and shops
  Intruder detection in critical areas (warehouses, server rooms). Reduces losses due to theft and lowers insurance premiums by providing video evidence.
• Pet-friendly spaces
  Thanks to its immunity to animals up to 20 kg, it avoids false alarms and optimises notification management for security personnel.
• Alert automation
  Integrable with other AJAX devices and automation rules (e.g., turn on lights after activation), improving responsiveness and reducing downtime.

5. Certifications and standards

• Grade 2 : Meets safety requirements for medium-risk environments.
• Jeweller & Wings : AJAX's proprietary protocols for high speed and reliability in wireless communications.
• CE Conformity : Ensures electromagnetic compatibility and health.
• Internal AJAX testing : Validation of operation under extreme temperature and signal conditions.

6. How to choose the optimal sensor

• To select the most suitable detector, consider:
• Installation environment : Open spaces or spaces with many walls require a greater range (1,700 m line of sight).
• Pet presence : If you live with animals weighing less than 20 kg, this model avoids false alarms.
• Need for visual evidence : If you require immediate images to validate an intrusion, prioritise the ability to quickly send up to 5 photos.
• Integration and scalability : Check compatibility with your AJAX hub and expansion plans (more detection zones, sirens, controls).
• Maintenance and autonomy : With CR123A batteries and up to 4 years of life, you minimise battery replacement costs.

7. Frequently Asked Questions (FAQs)

• What is the difference between this sensor and a conventional PIR sensor without a camera?
  The AJ-MOTIONCAM-B adds photographic evidence, reducing human error and false alarms by displaying images of what happened.
• How does temperature affect PIR range?
  Extreme temperatures can affect sensitivity, but AJAX tests its sensors from 0°C to 40°C to ensure stable performance.
• Can it be integrated with home automation systems other than AJAX?
  It only works natively with hub and AJAX protocol; for external integrations you would need a bridge or intermediate API.
• What minimum signal level is recommended for a reliable installation?
  At least three bars of signal in the AJAX app to ensure fast data and image transmissions.

Explore our AJAX sensor catalogue and, if you need help choosing or sizing the installation, write to us.