![](https://www.healeyfire.com/wp-content/uploads/2020/03/signalinglinecircuit.jpg)
Our Intelligent Control units are backward-compatible with the installed base of SmartOne® initiating and control devices, preserving your investment in Kidde Fire Suppression System products acquired over the years. Learn more from this datasheet: https://kidde-fenwal.com/Media/Data%20Sheets/K-76-801_screen.pdf