Modulating Steam Humidistat used with Model 866
Click Image for Gallery
The Model 5558 automatic digital modulating control package is the recommended humidistat for the Aprilaire modulating steam humidifier.
• Selectable Celsius or Fahrenheit scale.
• Outputs controlling humidification and dehumidification.
• Integrated sensor for better application flexibility.
• Multi-level lockable access menu and lockable set point to prevent accidental changes.