Introduction to Ajax MotionProtect Outdoor 22959
Ajax MotionProtect Outdoor(model 22959) is a wireless outdoor passive infrared (PIR) motion detector designed to deliver reliable perimeter protection with low maintenance and advanced false‑alarm prevention. Marketed as aWireless Outdoor PIR Detector (3 615 m), it combines dual PIR sensors with Ajaxs LISA two‑step analysis to distinguish legitimate human motion from environmental noise, insects and small animals. The unit offers anti‑masking and tamper detection, optional external power, IP55 weather protection and secure two‑way wireless communications.
Key features at a glance
- Dual‑PIR + LISA algorithm:reduces false alarms caused by wind, insects and temperature changes.
- Adjustable detection range:3 615 m with approximately 90 horizontal coverage and three sensitivity levels.
- Anti‑masking & tamper detection:detects attempts to cover or sabotage the detector.
- Pet immunity:ignores animals up to around 80 cm in height.
- Flexible power:two pre‑installed CR123A batteries (up to ~5 years) or optional external 5 28 V DC input.
- Secure communications:Jeweller two‑way radio with AES encryption and configurable polling intervals.
- Outdoor rated:IP55 protection for typical perimeter and garden installations.
- Suggested price:159.99 (as supplied). Warranty information not provided.
Detailed specifications and benefits
The MotionProtect Outdoor uses dual PIR sensors to monitor infrared changes within its field of view. Dual sensors provide a cross‑check that helps reduce false positives: both sensors must register compatible motion patterns for the detector to trigger an alarm. In addition Ajax applies a proprietary LISA two‑step analysis that evaluates the signal shape and timing to distinguish human gait and thermal signature from transient environmental events (moving foliage, rain, insects).
Detection distance is adjustable between 3 and 15 metres and the horizontal coverage is approximately 90 degrees. Sensitivity can be changed across three levels to match the installation environment. The detector is tuned to target human walking speeds (about 0.3 2 m/s), and it includes pet immunity to ignore animals up to ~80 cm tall when mounted at the recommended height (about 0.8 1.3 m).
Anti‑masking and tamper detection are important for outdoor devices where an attacker might try to cover or disable the sensor. MotionProtect Outdoor includes measures to detect occlusion and tampering. Communications use Ajaxs Jeweller two‑way radio protocol with AES encryption, providing secure, low‑latency reporting to the hub. Polling intervals are configurable to balance battery life and response speed.
The detector ships with two CR123A 3 V batteries pre‑installed; Ajax quotes up to approximately five years of battery life depending on settings and reporting frequency. For installations where mains continuity is preferred, an optional external 5 28 V DC input is available. The dual‑power flexibility allows installers to choose between very low‑maintenance battery operation and wired power for continuous service.
With an IP55 rating the MotionProtect Outdoor is designed to resist dust ingress and water jets from any direction, making it suitable for most exposed locations when mounted per manufacturer recommendations. Operating temperature range is 625 C to +60 C. Physical dimensions are approximately 183 70 65 mm with a weight near 322 g. Recommended mounting height is 0.8 1.3 m to achieve the stated pet immunity and detection pattern.
Use cases and scenarios where the detector excels
- Perimeter and boundary security:Ideal for protecting fences, hedges, gates and property borders where early detection of intruders is required.
- Entrances and walkways:Prevents unauthorized access via driveways, side paths and yard entrances with configurable detection range to avoid alerting on harmless movement outside the intended zone.
- Gardens and outbuildings:Low‑maintenance battery operation makes the unit suitable for detached garages, sheds and garden areas that lack convenient mains power.
- Residential and small business installations:Suits homeowners and small business owners who want reliable outdoor detection integrated with a wireless security system.
- Installer and professional setups:Offers features—anti‑masking, external power option, secure radio—that professional installers value for robust, code‑compliant systems.
Performance depends on careful placement: mounting at the recommended height and orienting the detector to cover entry paths rather than open areas reduces false alarms and increases meaningful detection. Adjust the detection range and sensitivity to match nearby vegetation, reflective surfaces and common animal paths. For high‑traffic gardens with many small animals, test sensitivity and repositioning to maintain pet immunity.
Comparisons with similar products
Outdoor motion detection technology typically falls into several categories: PIR only (like MotionProtect Outdoor), PIR combined with microwave Doppler, and camera‑based analytics. Against other PIR‑only devices the MotionProtect Outdoor distinguishes itself through dual‑PIR cross‑checking plus the LISA algorithm, which together reduce nuisance alarms from environmental factors. Compared with hybrid PIR+microwave sensors, a dual‑PIR approach can be simpler to tune and is less susceptible to radar reflections from metallic surfaces but may require more careful placement in complex environments.
Compared with camera‑based detection, a dedicated PIR detector offers lower power consumption, faster detection-to-alarm latency and reduced privacy concerns. Cameras can provide verification imagery but typically need more bandwidth, power and maintenance. For many perimeter roles, a reliable PIR detector like the MotionProtect Outdoor paired with a camera for verification creates a flexible, layered security solution.
When compared with wired outdoor detectors, the wireless Ajax unit simplifies installation and reduces cabling costs—particularly useful for detached or remote installations. The trade‑offs are battery management (unless external power is used) and the need to ensure robust radio coverage back to the security hub.
Customer testimonials and expected user feedback
Specific verified customer reviews were not provided in the supplied data. However, typical feedback themes for products of this class and feature set include the following:
- Positive:Reliable detection with few false alarms after correct setup; long battery life; easy wireless integration with Ajax hubs and low maintenance requirements.
- Constructive criticism:Initial installation and sensitivity tuning can take time to get perfect; outdoor placement requires adherence to mounting recommendations; higher upfront cost than simple single‑PIR detectors.
- Professional viewpoint:Installers value anti‑masking and tamper features as differentiators for perimeter protection jobs, and the optional external power input is useful for commercial or permanent installations.
If you are evaluating the product in a buying decision, seek out independent user reviews and installer feedback specific to your climate and installation scenario. Testing the detector in situ before finalizing placement is recommended.
Conclusion: why MotionProtect Outdoor is a strong perimeter security choice
Ajax MotionProtect Outdoor 22959 packs several features that make it a compelling choice for perimeter and entrance protection: a dual‑PIR sensor array with LISA analysis to reduce false alarms, anti‑masking and tamper detection for resilience against sabotage, configurable detection range and sensitivity for adaptable coverage, and flexible powering options (long‑life batteries or external DC). Its IP55 rating, secure encrypted radio and pet immunity up to ~80 cm further position it as a practical, low‑maintenance option for homeowners, small businesses and professional installers.
Like any security device, success depends on correct placement, appropriate sensitivity settings and integration into a broader security strategy (for example, combining detectors with alarms, cameras and lighting). For locations where cabling is difficult or ongoing maintenance needs to be minimized, the Ajax MotionProtect Outdoor offers a modern, robust balance of reliability and convenience. Verify local warranty and certification details with the seller or manufacturer before purchase, and consult the official user manual and product page for full technical and installation guidance.
