Series LF909-FS/909RPDA-FS with SentryPlus Alert® Technology

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Unattended RPZ relief valve discharge in your facility can cause thousands of dollars in water damage – and not knowing there’s a problem until it’s too late can be a disaster.

Series LF909-FS/909RPDA-FS now come standard with an integrated flood sensor. Activate flood detection technology through an add-on connection kit and enjoy peace of mind with real-time alerts when potential flood conditions are detected in your facility.

To learn more about SentryPlus Alert™ technology visit: Flood Protection Backflow System.

New Integrated Flood Sensor with SentryPlus Alert Technology
Retrofit Kits Available for Upgrading Existing Backflow Preventer
Easy Connection Options for BMS or Cellular

Reliable Flood Detection You Can Trust

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24/7 monitoring detects potential
flood condition

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Real-time alerts sent via phone,
text, and email

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Save money, time, and stress



How it Works


Install Your Backflow Preventer as Usual
Buy a Connection Kit to Activate Flood Sensor Technology
Enjoy Peace of Mind with Reliable Flood Detection

Choose Your Connection Kit

Connection kits include options for connecting to a Building Management System (BMS) or Cellular Gateway to the Watts cloud-based platform Syncta. Whether you’re installing a new backflow preventer or retrofitting your existing system, we have a connection kit to fit your needs.
 
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BMS Sensor Connection Kit

  • For LF909-FS Large Sizes 2-1/2 to 10 IN
  • Includes a sensor activation module and power supply.
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BMS Sensor Retrofit Connection Kit 2-1/2" to 3"

  • For LF909-FS Large Sizes 2-1/2 to 3 IN
  • Includes a sensor activation module, sensor, power supply, O-ring, and hex bolts.
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BMS Sensor Retrofit Connection Kit 4" to 10"

  • For LF909-FS Large Sizes 4 to 10 IN
  • Includes a sensor, sensor activation module, power supply, O-ring, and hex bolts.
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Cellular Sensor Connection Kit

  • For LF909-FS Large Sizes 2-1/2 to 10 IN
  • Includes a sensor activation module, cellular gateway, and power supply.
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Cellular Sensor Retrofit Connection Kit 2-1/2 to 3"

  • For LF909-FS Large Sizes 2-1/2 to 3 IN
  • Includes a sensor activation module, sensor, power supply, cellular gateway, O-ring, and hex bolts.
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Cellular Sensor Retrofit Connection Kit 4" to 10"

  • For LF909-FS Large Sizes 4 to 10 IN
  • Includes a sensor activation module, sensor, power supply, cellular gateway, O-ring, and hex bolts.