GJD300 (D‑TECT 2) is a BS‑8418 capable, outdoor quad‑element passive infrared (PIR) motion detector for perimeter and external detection. It provides long‑range programmable beams, adjustable aim and robust metal housing for reliable perimeter security, CCTV triggering and lighting control.

• Key features: Quad‑element PIR for improved false alarm immunity; programmable detection up to 30 m; adjustable pan (≈180°) and tilt (≈90°) for accurate beam alignment.
• Outputs & integration: 2 volt‑free contacts, 2 negative switched outputs, front & rear tamper — suitable for alarm panels, cameras and GJD lighting controllers.
• Installer friendly: masking/sliders for lens zones, walk/test LED, optional remote programming fob and conduit cable adaptor.
• Rugged design: zinc‑alloy metal housing, conformally coated electronics and IP rating noted across listings (see specifications).

Use cases: Perimeter protection for commercial sites, trigger input for CCTV systems, external lighting control and integration with alarm systems.

Compliance & safety: Manufacturer states BS‑8418 capability. Refer to the official datasheet and installation manual for exact wiring, variant power requirements and IP rating. Installation should be carried out by a qualified installer and in accordance with local regulations and manufacturer instructions.