Water Leak Alarm with 1" Automatic Water Main Shutoff Valve

SKU: RS-080-1

The FloodMaster RS-080 detects plumbing leaks and automatically shuts off the main water supply line before extensive flooding occurs. This kit is easily expandable for multiple points of leak detection within a single room, floor, etc. It includes these commercial-grade components:

  • 1 – Receiver box
  • 1 – 1" full port lead-free shut-off valve and actuator assembly
  • 1 – Magnetized water sensor with 8' lead wire
  • 1 – Metal plate for sensor placement
  • 1 – 120V AC power plug with 12' lead wire
  • Automatically shuts off the main water supply line when a leak is detected – supports additional sensors for wider areas of leak detection
  • Compact, magnetized leak detection sensor features a 1/16” stand-off to allow for air circulation and eliminate false alarms caused by humidity from the floor
  • Sensor can be installed securely horizontally or vertically on the included metal plate
  • Audible alarm sounds when a leak is detected
  • System is reusable, with an easy reset button
  • Rigid, reliable automatic shut-off valve
  • Plugs into a standard wall outlet
  • Tie into an existing security panel or BMS
  • Optional Cable Adder allows the receiver to be positioned up to 100' away from the valve assembly – great for monitoring hard-to-reach locations such as risers, ceilings and crawl spaces
  • Also available for 2-1/2", 3" and 4" Butterfly Valves

RDT recommends that installations be completed by a licensed plumber to ensure that all local code requirements are followed.




  • NSF/ANSI 61 and 372 approved valve – meets U.S. EPA Safe Drinking Water Standards
  • MA Board of Registration of Plumbers Approval Code # P3-0818-66

You are currently viewing the RS-080-1 kit, which features a wall plug and 1" automatic shut-off valve.

Standard Base Kit Configurations:

3/4", 1", 1-1/4", 1-1/2" and 2" valve sizes are available to order online. Contact us for 2-1/2", 3" and 4" valves.

ModelSensorPowerSecurity Tie-InRecommended for
RS-080-xStandardWall plugYesLocalized protection
RS-080-x-MK6StandardHard wiredYesPlenum space / ceiling installations