The GeneralAire M3 is the correct component for using with the following humidifiers:
The GeneralAire M3 Select Control Humidistat can be mounted on a duct or wall. This GeneralAire Select Control Humidistat, also known as part number 7015 must be installed by a qualified technician. Improper operation will result in over or under humidification in your home. Failure to correctly install this GeneralAire 7015 Humidistat may result in personal injury or property damage. With over humidification, it could create increased condensation, structural damage and mold accumulation. Condensation could enable mildew and mold to grow that may result in damage to the building and its contents.
GeneralAire M3 Select Control Humidistat specifications:
This select control humidistat for GeneralAire Humidifiers provides low voltage control and is installed in central heating systems. This GeneralAire M3 Humidistat has a SPST switch and is should not be installed on the warm air duct. GeneralAire is also known by the following spelling variations: General Aire, General Air and GeneralAir.