Overview
The Optex REDWALL SIP-404 is a mid-range outdoor passive-infrared (PIR) motion detector designed for perimeter and approach detection and for triggering CCTV/security systems. It offers two independent detection zones (near and far), automatic sensitivity management using ambient temperature and illuminance data, and anti-mask/anti-tamper features suitable for vandal-resistant outdoor installations.

• Detection coverage: 40 × 4 m (near & far zones)
• Two independent detection zones with separate sensitivity selectors for camera preset/trigger control
• Active infrared anti-masking (AIR) and anti-rotation (3‑axis accelerometer) tamper detection
• Intelligent auto-sensitivity algorithm to reduce false alarms (uses ambient temperature & light)
• Weatherproof, hardened polycarbonate housing (main unit rated IP65)
• Multiple variants available across the SIP family (wired 11–26 VDC / 22–26 VAC, IP/PoE, wireless)

Use cases
Designed for perimeter security, approach detection, and camera pre-set/triggering in commercial and critical infrastructure environments. Suitable for professional installation; installers should confirm the exact SIP-404 variant when wiring or integrating with alarm/CCTV systems.

Safety & compliance
Install according to the Optex datasheet and applicable local electrical regulations. Power must be isolated before installation. Check the specific model datasheet for exact electrical ratings, wiring diagrams and any heater/temperature options. Refer to the official datasheet for CE/UKCA compliance details for your market.