Visonic SPY-4 PIR Motion Detector Curtain
- Virtually unnoticeable after mounting
- Designed for securing corridors, doors, windows or skylights
- Ideal for controlling CCTV, access control and other systems
- Ceiling or wall mounting
- Tiny size: Diameter: 19 mm (0.75 in) Length: 70 mm (2.75 in)

Spy 4 is the world's smallest detector offering inconspicuous curtain protection for corridors, passageways, doors and windows as well as support for access control, CCTV and various other control applications. It can be flush-mounted in a wall or ceiling or installed from behind the wall or the ceiling, providing a solid-curtain coverage of up to 2m width x 4m height (6 x 12ft). Despite its miniature size, the Spy 4 detector achieves full-size performance by implementing state-of-the-art detection technologies. Backed by 30 years of Visonic expertise, Spy 4 offers industry-leading sensitivity and reliability levels while virtually eliminating false alarms. Spy 4 is ideal for perimeter protection, securing corridors, doors, windows and skylights as well as controlling CCTV, access control and other systems. It is designed for trouble-free ceiling or wall mounting. Mounted so only the miniature lens is visible, the Spy 4 detector is virtually unnoticeable after installation.
Features
- Virtually unnoticeable after mounting: Blends seamlessly into any environment without attracting attention.
- Designed for securing corridors, doors, windows or skylights: Provides versatile protection options for various entry points.
- Ideal for controlling CCTV, access control and other systems: Enhances security by integrating with existing systems.
- Ceiling or wall mounting: Allows for flexible installation in different settings.
- Tiny size: Diameter: 19 mm (0.75 in) Length: 70 mm (2.75 in) - compact design that fits almost anywhere.
- Solid curtain detection pattern: Ensures comprehensive coverage for enhanced security.
- Range: 2m width x 4m height (6 x 12ft) - suitable for various applications.
- Exceptionally high reliability and false alarm immunity: Reduces the chance of unnecessary disruptions.
- RF protection up to 1000 MHz: Ensures the detector remains operational in challenging environments.
- 10-14 VDC power supply: Compatible with a range of power sources for added flexibility.
- Fast and easy installation: Includes collar and front/rear mounting plate for quick setup.
Visonic SPY-4 Detailed Specifications
| Feature | Details |
| Diameter | 19 mm (0.75 in) |
| Length | 70 mm (2.75 in) |
| Detection Range | 2m width x 4m height (6 x 12ft) |
| Power Supply | 10-14 VDC |
| RF Protection | Up to 1000 MHz |
| Mounting Options | Ceiling or wall mounting |
| Installation Ease | Fast and easy with included mounting hardware |
| Reliability | High sensitivity with false alarm immunity |






