Series LF909-FS/909RPDA-FS with SentryPlus Alert® Technology
Get Alerts with Integrated Flood Detection
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.
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
24/7 monitoring detects potential
flood condition
Real-time alerts sent via phone,
text, and email
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.
For Large Diameter Models
BMS Sensor Connection Kit
2-1/2" to 10"
- For LF909-FS Large Sizes 2-1/2 to 10 IN
- Includes a sensor activation module and power supply.
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.
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.
Cellular Sensor Connection Kit
2-1/2" to 10"
- For LF909-FS Large Sizes 2-1/2 to 10 IN
- Includes a sensor activation module, cellular gateway, and power supply.
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.
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.
For Small Diameter Models
BMS Sensor Connection Kit
3/4" to 2"
- For LF909-FS Small sizes 3/4 to 2 IN
- Includes sensor activation module with cable, deflectors (4), ground wire, and power adapter
BMS Sensor Retrofit
Connection Kit 3/4" to 1"
- For LF909 sizes 3/4 to 1 IN
- Includes flood sensor, deflectors (2), sensor activation module with cable, mounting bolts, ground wire, and power adapter
BMS Sensor Retrofit
Connection Kit 1-1/4" to 2"
- For LF909 sizes 1-1/4 to 2 IN
- Includes flood sensor, deflector, sensor activation module with cable, mounting bolts, ground wire, and power adapter
Cellular Sensor Connection Kit 3/4" to 2"
- For LF909-FS Small sizes 3/4 to 2 IN
- Includes sensor activation module with cable, deflectors (4), Cellular Gateway with mounting kit, ground wire, and power adapter
Cellular Sensor Retrofit
Connection Kit 3/4" to 1"
- For LF909 sizes 3/4 to 1 IN
- Includes flood sensor, deflectors (2), sensor activation module with cable, mounting bolts, Cellular Gateway with mounting kit, ground wire, and power adapter
Cellular Sensor Retrofit
Connection Kit 1-1/4" to 2"
- For LF909 sizes 1-1/4 to 2 IN
- Includes flood sensor, deflector, sensor activation module with cable, mounting bolts, Cellular Gateway with mounting kit, ground wire, and power adapter