The **Apollo Discovery Heat Detector 58000-400** provides reliable analogue-addressable heat detection for commercial, industrial, and institutional applications. Designed for areas affected by dust, steam, fumes, or airborne particles, it supports accurate temperature monitoring, individual device identification, and dependable fire alarm system performance.

The Apollo Discovery Ionisation Smoke Detector 58000-500 is an analogue-addressable fire detector designed to detect smoke particles from fast-burning fires. It supports selectable response modes, accurate device identification, and reliable integration with compatible Apollo fire alarm systems.