Kidde trigger input and relay module.

• Causes interlinked smoke, heat and carbon monoxide alarms to sound and relay to activate when a sprinkler system is activated.
• Can also be used with call points (with a normally open volt-free contact).
• Volt-free contacts.
• Mains powered with 9V battery back-up.
• Dimensions (mm): 132(Diameter) x 30(Depth).

Click for Kidde relay module data sheet.