1. Introduction
The Paradox NV5 is a state-of-the-art digital infrared motion detector designed for reliable security applications. It features a dual-element sensor and advanced digital signal processing to provide accurate detection while offering pet immunity for animals up to 16 kg. This manual provides essential information for the proper installation, operation, and maintenance of your NV5 detector.
2. Setup and Installation
The NV5 detector is designed for straightforward installation without the need to remove the circuit board. It is suitable for wall or ceiling mounting using the provided articulated flange.
2.1 Mounting Location
- Choose a location that provides an unobstructed view of the area to be protected.
- Avoid aiming the detector directly at heat sources, air vents, or windows that receive direct sunlight.
- Mount the detector at the recommended height (typically 2.1m to 2.7m / 7ft to 9ft) for optimal coverage and pet immunity performance.
2.2 Wiring
The NV5 is a wired device and requires a stable power supply. Connect the detector to your security system's control panel according to the wiring diagram provided with your control panel and the NV5's terminal block markings. Ensure all connections are secure.
2.3 Pet Immunity Configuration
The NV5 offers pet immunity up to 16 kg. For optimal performance, ensure the detector is mounted at the correct height and the detection area is clear of objects that could trigger false alarms from pets.

Figure 1: Paradox NV5 PIR Detector showing its external casing, internal circuit board, and diagrams illustrating the top-down and side-view detection patterns, including the optional super creep zone and pet immunity indication.
3. Operating Instructions
The Paradox NV5 is a fully digital infrared motion detector. Once properly installed and powered, it continuously monitors its detection area for movement.
3.1 Detection Principle
The detector uses a dual-element PIR sensor and advanced digital software to analyze infrared energy changes within its field of view. A patented detection type ensures consistent sensitivity across the entire protected zone. When a significant change in infrared energy (indicating movement) is detected, the NV5 transmits an alarm signal to the connected security control panel.
3.2 Pet Immunity
The pet immunity feature allows pets weighing up to 16 kg to move freely within the protected area without triggering an alarm. This is achieved through specific lens design and digital processing that differentiates between human and animal infrared signatures.
4. Maintenance
To ensure the long-term reliability and optimal performance of your NV5 detector, follow these simple maintenance guidelines:
- Cleaning: Periodically wipe the detector's lens and casing with a soft, dry cloth to remove dust and dirt. Do not use abrasive cleaners or solvents.
- Obstructions: Ensure that the detector's field of view remains clear of any new obstructions (e.g., furniture, plants, decorations) that could block its detection capabilities.
- Testing: It is recommended to periodically test the detector's functionality in conjunction with your security system to confirm it is operating correctly. Refer to your security system's manual for testing procedures.
5. Troubleshooting
If you experience issues with your Paradox NV5 detector, consult the following troubleshooting guide:
5.1 False Alarms
- Environmental Factors: Check for heat sources (heaters, direct sunlight, strong drafts) within the detection area. Relocate the detector or adjust its aim if necessary.
- Pet Immunity: Ensure pets are within the specified weight limit (up to 16 kg). Verify the detector is mounted at the correct height.
- Loose Wiring: Inspect wiring connections at the detector and control panel for any loose or corroded terminals.
5.2 No Detection
- Power: Verify the detector is receiving power from the control panel.
- Obstructions: Ensure there are no physical obstructions blocking the detector's field of view.
- Wiring: Check for proper wiring connections between the detector and the control panel.
- Detector Placement: Confirm the detector is positioned to cover the desired area effectively.
If problems persist after attempting these solutions, contact your security system installer or Paradox technical support.
6. Specifications
| Brand | Paradox |
| Model | NV5 |
| Color | White |
| Power Source | Wired Electric |
| Maximum Range | 10 Meters (10x10m coverage) |
| Detection Angle | 90 degrees |
| Mounting Type | Wall |
| Pet Immunity | Up to 16 kg |
| Detection Type | Dual Element PIR, Digital Software Managed |
| Compatible Devices | Lighting Control, Smart Home Hub, Security System |
| Battery | Battery not included (Wired operation) |
| Compliance | EN50131 Grade 2 |
7. Warranty and Support
7.1 Warranty Information
Warranty terms and conditions for the Paradox NV5 detector are typically provided at the point of purchase or with the product packaging. Please refer to these documents for detailed information regarding your warranty coverage. Keep your proof of purchase for warranty claims.
7.2 Technical Support
For technical assistance, installation queries, or advanced troubleshooting, please contact your authorized Paradox dealer or installer. You may also visit the official Paradox website for support resources, FAQs, and contact information.







