HotSpring and Caldera spa sensors

Find here the temperature sensors and Hi-Limit sensors as well as their spare parts compatible with HotSpring and Caldera hot tubs.

  • A temperature sensor, as the name implies, is used to detect the water temperature, which is indicated on the spa's keypad.
  • An overheating sensor (called "Hi-Limit") is a safety device programmed to activate when the water temperature exceeds 40°C, the maximum temperature generally recommended.