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 HYFLO Fire Alarm Check Valve provides dependable one-way waterflow control, backflow prevention, and alarm activation support for wet-pipe fire sprinkler systems. Suitable for commercial buildings, warehouses, industrial facilities, hospitals, schools, and fire pump rooms, it helps protect sprinkler pipelines and support reliable fire-protection system performance.