Skip to Main Content

SentryPlus Alert Technology

SentryPlus Alert™ Technology for RPZ Backflow Flood Detection

The SentryPlus Alert™ system detects catastrophic discharge from the relief valve of RPZ backflow preventers that can potentially cause flooding due to excessive discharge and/or a blocked/under-sized floor drain.

In the event of a detected flood condition, the SentryPlus Alert system will issue a multi-channel (call, text, or email) alert so you can take action before the water starts rising. Paired with a Watts LFF113FP Automated Flood Protection Shutdown Valve will enable the system to automatically shut down the water supply to the backflow preventer, helping to prevent a potential costly flood.


  • Provides Automated Flood Detection with real time multi-channel alerts
  • Continuously monitors for potential catastrophic flood conditions
  • Can be installed without taking existing equipment off-line
  • Available as an upgrade kit for existing installations, or integrated with a backflow preventer, Automated Shutdown ACV, or complete Engineered Flood Protection Station

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific SentryPlus Alert Technology

Approval Information

For approval information, please refer to the products specification sheet. For any other information on product certification and documentation information, please visit our certification partner websites: