Toro  TMC-424 Flow-Sensing Monitor and react to system leaks or breaks. Monitor and react to system leaks or breaks Options for connection of up to four Master Valve or Pump Start Relays utilizing TSM-4F and TSM-8F modules Run Times In Minutes or Seconds Ability to set run times for less than a minute provides efficient watering for planter box misting cycle nursery or syringe cycle needs.