The Trion Duct Humidistat for Comfort Steam Humidifier is a genuine Trion duct humidistat. This Trion duct mounted humidistat is an electronic humidistat. This Trion humidistat can be used with all Trion comfortsteam humidifiers.
The Trion duct humidistat:
This Trion humidistat is also referred to as a Trion HSD, and is Trion part # 259943-001.