TOA Audio products range from digital amplifiers and speakers, to mixers, wireless microphone systems and digital processors used in sound reinforcement, to integrated VOIP intercom and emergency paging and voice evacuation systems for security and communications.

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Hammond, Norm. Open Thermostat Fahrenheit

Hammond, SKT Series, Thermostat


  • Designed to provide air temperature control and monitoring in cabinets.
  • Thermostat NC (Normally Closed) for the control of heaters and heater fans.
  • Thermostat NO (Normally Open) for the control of cooling units, or for switching signal transmitters in case of overheating.
  • Available in Fahrenheit or Celsius.

NC - Normally Closed (Red)

  • Used in conjunction with heaters.
  • Contact opens when rising temperatures reach the set point temperature, shutting heater off.

NO - Normally open (Blue)

  • Used in conjunction with fans.
  • Contact closes when rising temperatures reach the set point temperature, turning fan on.