4-Wire Optical Smoke/ Heat Detector

The 4-Wire Optical Smoke/Heat Detector provides fire and overheating detection performance by acting as a smoke sensor and a 135F heat detector at the same location.

Features:
• 4 wire models
• Advanced detection and discrimination algorithms
• Easy installation and maintenance
• Sleek low-profile housing design
• Durable sensor head, no need for replacement
• N/C (normal/close)-N/O (normal/open) selectable relay output