Product Description
The AJAX#44408 Ajax Superior MotionProtect Plus Fibra is a professional-grade wired motion detector that combines advanced PIR technology with a K-band microwave sensor for enhanced accuracy and superior false alarm immunity. Designed for challenging indoor environments where thermal interference may occur, the MotionProtect Plus Fibra uses intelligent dual-verification technology to distinguish genuine intrusions from environmental disturbances such as air conditioners, fans, fireplaces, heated curtains, and airflow changes. Featuring Ajax Fibra encrypted communication, pet immunity, SmartDetect algorithms, and remote configuration capabilities, this detector delivers highly reliable intrusion detection for residential, commercial, and industrial security installations across Australia and New Zealand.
What's Included in the Box

Main Features
Dual Detection Technology
The MotionProtect Plus Fibra combines:
When motion is detected, the microwave sensor verifies the PIR alarm before activation, significantly reducing false alarms.
Superior False Alarm Protection
Designed for environments where traditional PIR detectors may be affected by:
The K-band microwave verification ensures only genuine intrusion events trigger alarms.
Professional Motion Detection
Provides accurate human movement detection with:
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Detection range up to 12 metres
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88.5° horizontal viewing angle
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Motion speed detection from 0.3 to 2.0 m/s
For optimal performance, installation is recommended at 2.4 metres height.
Ajax Fibra Communication Technology
Fibra provides highly secure wired communication featuring:
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Two-way communication
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Dynamic encrypted data transmission
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Instant alarm notifications
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Advanced anti-sabotage protection
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Remote configuration through Ajax applications
Supports line lengths up to 2,000 metres using U/UTP Cat5 cabling.
SmartDetect False Alarm Filtering
Ajax SmartDetect software analyses detected movement to reduce nuisance alarms while maintaining fast response to genuine threats.
Ideal for:
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Offices
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Retail stores
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Warehouses
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Commercial facilities
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Residential properties
K-Band Microwave Verification
Unlike standard motion detectors, the MotionProtect Plus Fibra performs an additional RF scan using its K-band microwave sensor.
Benefits include:
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Higher detection reliability
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Reduced environmental interference
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Greater protection in complex environments
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Improved alarm accuracy
Pet Immunity
Designed to ignore small animals while maintaining reliable human detection.
Supports:
Suitable for homes and businesses with pets.
Adjustable Sensitivity
Three configurable sensitivity levels allow professional installers to optimise performance based on site conditions.
Settings include:
Temperature Compensation
Maintains accurate detection performance despite changing ambient temperatures.
Effective operating range:
Sabotage Protection
Tamper Alarm
Immediate alerts are generated if:
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The detector is removed from the mounting surface
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The mounting panel is detached
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Physical tampering is attempted
Device Authentication
Built-in authentication technology prevents device substitution and unauthorised system access.
Detailed Specifications
| Specification |
Details |
| Product Code |
AJAX#44408 |
| Product Name |
Superior MotionProtect Plus Fibra |
| Detector Type |
Wired PIR Motion Detector with Microwave Verification |
| Communication Technology |
Fibra |
| Sensor Configuration |
1 × PIR Sensor, 1 × K-Band Microwave Sensor |
| Motion Detection Distance |
Up to 12m |
| INCERT Detection Distance |
Up to 10m |
| Detection Angle |
88.5° Horizontal |
| Motion Detection Speed |
0.3 – 2.0 m/s |
| Sensitivity Levels |
3 |
| Pet Immunity |
Up to 20kg |
| Pet Height Immunity |
Up to 50cm |
| False Alarm Prevention |
SmartDetect |
| Microwave Verification |
K-Band Microwave Sensor |
| Temperature Compensation |
Yes |
| Communication Type |
Encrypted Two-Way Communication |
| Fibra Cable Requirement |
4-Core Cable |
| Maximum Fibra Line Length |
Up to 2,000m |
| Operating Voltage |
5–30V DC |
| Nominal Voltage |
24V DC |
| Power Consumption |
Up to 187mW |
| Quiescent Current |
270µA |
| Maximum Current Consumption |
7.8mA |
| Tamper Protection |
Yes |
| Device Authentication |
Yes |
| Installation Height |
2.4m Recommended |
| Installation Environment |
Indoor Only |
| Dimensions |
110 × 67 × 62 mm |
| Weight (Black) |
86g |
| Weight (White) |
98g |
| Operating Temperature |
−10°C to +40°C |
| Operating Humidity |
Up to 75% |
| Protection Rating |
IP50 |
| Impact Protection |
IK04 |
| Available Colours |
White, Black |
Warranty Information
24-Month Manufacturer Warranty
The Ajax Superior MotionProtect Plus Fibra is backed by a comprehensive 24-month manufacturer warranty.
About Ajax Systems
Ajax Systems is one of the world's leading security technology manufacturers, delivering innovative intrusion detection, life safety, automation, and video surveillance solutions. Ajax products are trusted globally for their encrypted communication, intelligent detection algorithms, and professional-grade reliability.

Practical Use Scenarios
Residential Applications
Ideal for:
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Living rooms
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Hallways
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Entryways
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Garages
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Internal security zones
Particularly useful in homes with air conditioning and heating systems.
Commercial Installations
Suitable for:
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Offices
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Warehouses
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Retail stores
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Showrooms
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Commercial facilities
Provides highly accurate motion detection in busy environments.
Temperature-Changing Environments
Recommended for areas affected by:
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Airflow
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HVAC systems
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Heating systems
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Sun-exposed windows
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Temperature fluctuations
The microwave sensor helps eliminate false alarms caused by environmental factors.
High-Reliability Security Systems
Ideal for:
Datasheets & Resources
Available documentation includes:
SKU
AJAX#44408
Excellence for the Australian and New Zealand Market
The AJAX#44408 Ajax Superior MotionProtect Plus Fibra is designed for security installations where maximum detection reliability is essential. Its dual-technology PIR and K-band microwave verification system provides exceptional resistance to false alarms caused by environmental conditions commonly found in Australian and New Zealand homes and commercial buildings.
Key advantages include:
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Dual PIR and microwave detection technology
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K-band microwave verification
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Detection range up to 12 metres
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Pet immunity up to 20kg
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SmartDetect false alarm filtering
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Temperature compensation
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Fibra encrypted communication
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Up to 2,000m communication distance
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Remote configuration and diagnostics
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Tamper protection
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Device authentication
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Professional commercial-grade performance
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Genuine Ajax Systems product
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24-month manufacturer warranty
FAQs
What is AJAX#44408 used for?
The AJAX#44408 is a wired motion detector designed to detect human movement while reducing false alarms through PIR and microwave verification technology.
What makes AJAX#44408 different from standard motion detectors?
The AJAX#44408 includes both a PIR sensor and a K-band microwave sensor that verifies alarms and reduces false triggers caused by environmental conditions.
How far can AJAX#44408 detect motion?
The AJAX#44408 can detect motion at distances of up to 12 metres when installed at the recommended height.
Does AJAX#44408 have pet immunity?
Yes. The AJAX#44408 supports pet immunity for animals weighing up to 20kg and up to 50cm in height.
What communication technology does AJAX#44408 use?
The AJAX#44408 uses Ajax Fibra encrypted wired communication technology.
Can AJAX#44408 reduce false alarms caused by air conditioners?
Yes. The AJAX#44408 uses its K-band microwave sensor to verify PIR alarms and minimise false alarms caused by airflows, fans, air conditioners, and heating sources.
What is the maximum cable distance supported by AJAX#44408?
The AJAX#44408 supports Fibra communication distances of up to 2,000 metres.
Is AJAX#44408 suitable for commercial security systems?
Yes. The AJAX#44408 is ideal for offices, retail stores, warehouses, and other commercial installations requiring high detection reliability.
Can AJAX#44408 be configured remotely?
Yes. The AJAX#44408 supports remote configuration and diagnostics through Ajax applications.
Does AJAX#44408 come with a warranty?
Yes. The AJAX#44408 includes a 24-month manufacturer warranty.