ST-3 Datasheet PDF - Systemsensor advanced ideas.

The DH100ACDCI senses smoke in velocities from 500 to 4,000 feet per minute. When smoke is detected, all interconnected Innovairs will initiate their relays. However, to quickly locate the fre source, only the detector sensing smoke will alarm. Two DPDT Form-C relay contacts, connected to auxiliary equipment, can also be confgured to prevent the spread of smoke through a particular area.

FEATUREs
• Ionization technology
• An air velocity rating from 500 feet per minute to 4,000 feet per minute (2.54 meters per second to 20.32 meters per second)
• Patented interconnectability for multi-fan shutdown
• Two DPDT Form-C relay contacts
• 24 VAC/DC or 120/240 VAC
• Versatile mounting options
• Outside mounting tabs
• A patented telescopic sampling tube
• Modular construction
• A patented cover-tamper trouble signal
• A transparent cover
• A remote test station
• Remote sounder/LED indicator options
• A built-in reset button