The model 600 humidifier unit I have has the manual control. Do you sell the digital control seperately and is it possible to upgrade the control on my current humidifier?
The Aprilaire Model 600 Whole-House Humidifier with automatic digital control is simply the best performing bypass humidifier on the market.
Thank you for contacting Aprilaire.
Yes, you may purchase the digital display humidistat separately. You will want to order the #60 humidistat. You can get this humidistat controller from you local HVAC contractors. This would be the best way, since they would be able to accurately install this for you.
You may also purchase that online. iaqsource.com is a good source for online purchases.
Please let us know if you have any further questions.